01 - Engine, removal and installation; Crankcase, Cylinder Head, Engine Breathing

Maintenance Jobs - 1986 through 1993

0101 - Engine oil and filter change
6190 - Removing and installing engine compartment lower panel

Service Information

00/57A - Revised checking/correcting oil level procedure

General

01-0010 - Engine and model survey
01-0085 - Warning instructions when hood open
01-0100 - Testing compression pressure
01-0110 - Cranking engine with starter
01-0150 - Testing cylinders for leaks
01-0200 - Inspecting, assessing cylinders with inspection lamp
01-0300 - Removing and installing engine
01-0400 - Function description of crankcase ventilation
01-0500 - Removing and installing cylinder head cover

Crankcase

01-1000 - Notes regarding crankcase
01-1100 - Measuring, drilling and honing cylinder bores
01-1200 - Facing crankcase contact surface
01-1220 - Servicing threaded holes for cylinder head bolts
01-1300 - Cleaning, sealing main oil galleries
01-1400 - Replacing core plug in crankcase

Covers

01-2100 - Removing and installing timing case cover
01-2120 - Removing and installing front cover at top
01-2140 - Replacing radial seal in front cover
01-2220 - Removing and installing closing cover
01-2240 - Checking for leaks at rear of engine

Oil pan

01-3100 - Removing and installing oil sump
01-3200 - Removing and installing oil sump (4MATIC)

Cylinder head

01-4000 - Notes regarding cylinder head
01-4050 - Checking, tightening cylinder head bolts
01-4070 - Servicing spark plug threads in cylinder head
01-4150 - Removing and installing cylinder head
01-4180 - Checking, facing cylinder head contact surface
01-4190 - Widening camshaft bearing bores (repair size)
01-4192 - Servicing threads for camshaft bearing cap bolts
01-4200 - Pressure-testing cylinder head
01-4300 - Cleaning, sealing oil longitudinal gallery in cylinder head


03 - Crank Assembly

Crankshaft

03-1800 - Removing and installing crankshaft

Connecting rods

03-3100 - Checking, replacing and tightening conrod bolts
03-3130 - Servicing, aligning and mounting conrod in bearings

Pistons

03-3160 - Removing and installing pistons
03-3165 - Pistons, matching and dimensions
03-3170 - Replacing piston rings

Assembly

03-3180 - Checking and servicing crankshaft
03-3200 - Mounting crankshaft in bearings
03-3240 - Replacing front crankshaft radial seal
03-3270 - Replacing rear crankshaft radial seal
03-3300 - Removing and installing grooved ball bearing and end cover in crankshaft
03-3420 - Removing and installing belt pull/vibration damper and hub
03-3450 - Checking, correcting setting of TDC sensor

Flywheel

03-4100 - Removing and installing flywheel or driven plate
03-4200 - Machining flywheel (except two-mass flywheel)
03-4300 - Replacing ring gear
03-4600 - Function of two-mass flywheel
03-4620 - Removing and installing two=mass flywheel
03-4640 - Removing and installing needle bush in two-mass flywheel
03-5000 - Removing and installing holding lock for crankshaft/ring gear

05 - Engine, Camshaft and Valve Train

Maintenance Jobs - 1986 through 1993

0561 - Checking valve clearance

Camshaft, rocker arm

05-2110 - Checking and replacing hydraulic valve clearance compensating elements
05-2130 - Checking basic position of hydraulic compensating elements
05-2140 - Adjusting basic setting of hydraulic compensating elements
05-2150 - Checking camshaft timing
05-2152 - Adjusting camshaft timing
05-2170 - Removing and installing driver on camshaft
05-2190 - Removing and installing rocker arm bearing bracket
05-2200 - Removing and installing camshaft
05-2218 - Replacing threaded bush in front of camshaft
05-2220 - Replacing end cap in rear of camshaft
05-2230 - Checking basic position of camshaft
05-2240 - Adjusting basic position of camshaft
05-2320 - Removing and installing rocker arms

Valves

05-2500 - Removing and installing valve springs
05-2600 - Checking valve springs
05-2700 - Replacing valve stem seals
05-2845 - Checking valve guides
05-2850 - Replacing valve guides
05-2895 - Checking valves
05-2900 - Replacing valve seats rings
05-2910 - Machine valve seat rings

Timing chain, chain tensioner, tension and slide rails

05-3100 - Removing and installing chain tensioner
05-3200 - Replacing timing chain
05-3300 - Removing and installing tensioning rail
05-3350 - Removing and installing guide rail
05-4600 - Removing and installing crankshaft gear

07 - Mechanical/Electronic Gasoline Injection System (KE Injection)

Maintenance Jobs - 1986 through 1993

0780 - Replacing fuel filter

Service Information

Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service
General

07.3-0001 - Additional designations for models and components
07.3-0002 - Summary of models and components
07.3-0004 - Vehicle features
07.3-0005 - Influencing variables of mechanical/electronic mixture adaptation
07.3-0013 - Function diagram KE injection

Testing

07.3-0121 - Testing electrical components of the KE injection system
07.3-0128 - Wiring diagrams
07.3-0266 - Retrofitting second fuel pump. model 124.026/030 - (Tech Mods)
07.3-1100 - Testing, adjusting engine
07.3-1122 - Testing kickdown switch
07.3-1203 - Testing engine output and exhaust emission on the roller dynamometer
07.3-1333 - Determining fuel consumption by driving on the road
07.3-1603 - Testing fuel pressures and internal leak tightness
07.3-1604 - Testing restrictor in fuel distributor for clear passage
07.3-1607 - Testing starting valve actuation
07.3-1609 - Performing fuel quantity comparison measurement

Removal, installation operations

07.3-1660 - Replacing seal for control plunger
07.3-1665 - Replacing, centering air flow sensor plate and checking, adjusting zero position of air flow sensor plate
07.3-1668 - Removing and installing mixture control unit with air guide housing
07.3-1674 - Replacing fuel distributor - (Tech Mods)
07.3-1683 - Removing and installing fuel accumulator
07.3-1686 - Replacing air flow sensor - (Tech Mods)
07.3-1689 - Replacing, adjusting throttle valve switch
07.3-1692 - Replacing electrohydraulic actuator
07.3-1698 - Removing and installing KE control unit - (Tech Mods) - (Tech Mods)

Some more testing

07.3-2006 - Testing electronic idle speed control
07.3-2053 - Testing, adjusting idle speed or special exhaust emissions test (ASU)
07.3-2320 - Performing cold start
07.3-2353 - Testing starting device - (Tech Mods)
07.3-5203 - Testing on/off ratio (USA) as of 1986 - (Tech Mods)
07.3-5303 - Replacing oxygen sensor
07.3-5563 - Removing and installing fuel filter
07.3-5701 - Testing fuel pump

Fuel pump

07.3-5710 - Removing and installing fuel pump - (Tech Mods) - (Tech Mods) - (Tech Mods)
07.3-5770 - Removing and installing fuel pump set - (Tech Mods)
07.3-5792 - Testing fuel pump relays (except engine 103.984 and (USA) (J) as of model year 1990) - (Tech Mods)
07.3-5820 - Replacing non-return valve for fuel pump
07.3-5860 - Replacing rubber rings or rubber stop for fuel pump set

Throttle valve and injection valves

07.3-6210 - Removing and installing throttle valve body - (Tech Mods)
07.3-6500 - Testing injection valves - (Tech Mods)
07.3-6520 - Removing and installing injection valves - (Tech Mods)

09 - Air Cleaner

Maintenance Jobs - 1986 through 1993

0980 - Replacing air filter element

Air Cleaner

09-1051 - Removing and installing, replacing air cleaner - (Tech Mods)
09-8091 - Replacing intake air cowl

 

13 - Accessory Belt

Maintenance Job - 1986 through 1993

1351 - Inspecting poly-V-belt

Accessory Belt

13-3420 - Removing and installing poly-V-belt
13-3430 - Checking poly-V-belt, typical damage
13-3440 - Poly-V-belt, running diagrams, dimensions
13-3450 - Removing and installing tensioning device
13-3452 - Checking tensioning device
13-3455 - Retrofitting shock absorber to tensioning device
13-3460 - Removing and installing guide pulley

14 - Intake Manifold, Exhaust Manifold, Emissions Control System

Maintenance Jobs - 1986 through 1993

1480 - Replacing oxygen sensor

Service Information

Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service

Emissions control

14-0001 - Distinguishing features of vehicles with emissions control system
14-0115 - Testing catalytic converter warning system (J) - (Tech Mods)
14-0116 - Testing oxygen sensor failure indicator (USA) - (See also Group 07)
14-0490 - Converting USA tourist vehicles with catalytic converter

Intake manifold

14-1310 - Removing and installing intake manifold, replacing gasket - (Tech Mods)
14-1346 - Replacing intake manifold (intake manifold removed)

Exhaust manifold

14-3915 - Removing and installing exhaust manifold - (Tech Mods) - (Tech Mods)

Air pump

14-7165 - Testing air pump
14-7251 - Removing and installing air pump - (Tech Mods)
14-7252 - Removing and installing electromagnetic clutch
14-7253 - Removing and installing air injection/transmission shiftpoint retard relay
14-7305 - Removing and installing air pump switchover valve

EGR

14-7611 - Testing exhaust gas recirculation - (Tech Mods)
14-7692 - Removing and installing exhaust gas recirculation switchover valve (only (J) (USA))

15 - Engine Electrical System (Ignition System)

Maintenance Jobs - 1986 through 1993

1550 - Check spark plugs, replace if necessary
1580 - Replacing spark plugs

Additional Information

How a Starter and Solenoid Operate

Ignition system

15-0010 - Notes regarding working on breakerless ignition system
15-0505 - Notes regarding working on breakerless transistorized ignition system
15-0509 - Use of unleaded fuels
15-0512 - Replacing ignition cables with M3 cable screw
15-0515 - Testing ignition timing
15-0520 - Adapting ignition timing point with resistance trimming plug to available fuel
15-1031 - Replacing spark plugs - (Tech Mods)
15-1250 - Testing electronic ignition system with variable characteristics EZL
15-2093 - Removing and installing EZL ignition control unit - (Tech Mods)
15-2133 - Removing and installing crankshaft position sensor - (Tech Mods)
15-2193 - Removing and installing engine systems control unit (N16) - (Tech Mods)
15-3010 - Removing and installing high voltage distributor

Alternator

15-5010 - Testing alternator with regulator in vehicle
15-5032 - Removing and installing alternator
15-5700 - Removing and installing poly-V-belt pulley (fan assembly)
15-5760 - Removing and installing regulator

Starter

15-7100 - Removing and installing starter
15-7101 - Servicing starter (124.1, 124.3 as of approx 11/88)

Programmed repairs - Electrical System I - - Select complaint...

Technical modifications - Electrical System I

18 - Engine Lubrication, Engine Oil Cooler

General

18-0020 - Engine oil and filter change
18-0050 - Oil circuit
18-0070 - Testing oil pressure
18-0075 - Testing oil pressure sensor
18-0090 - Operation of oil pressure gauge
18-0250 - Measuring oil consumption

Oil filter

18-1000 - Operation of oil filter
18-1100 - Removing and installing oil filter

Oil cooler

18-1300 - Operation of oil-to-coolant heat exchanger
18-1320 - Removing and installing oil-to-coolant heat exchanger

Oil pump

18-2100 - Removing and installing oil pump
18-2120 - Replacing and riveting oil pump chain
18-2150 - Removing and installing oil pressure relief valve in oil pump
18-2180 - Removing and installing oil shield at crankshaft

Oil gauge, sensor, transport

18-3050 - Operation of electrical oil level gauge
18-3300 - Removing and installing oil level sensor
18-3320 - Testing oil level sensor
18-3500 - Checking dipstick and guide tube
18-4150 - Replacing oil nozzle return lock
18-4200 - Removing and installing camshaft oil pipe

 

20 - Cooling System

Maintenance Jobs - 1986 through 1993

2010 - Checking coolant level/antifreeze protection
2011 - Checking coolant level
2050 - Checking cooling and heating system
2080 - Replacing coolant

Service Information

20.1 - Installation Instructions, Coolant Pre-heater, Model 124

Additional Information

Cooling System Diagnostic
Oil in cooling system? After repair, use Alkaline cleaner, Disodium trioxosilicate, pentahydrate.
Part number is 001 986 21 71 (500 grams)
Scale in cooling system? Use Citric Acid at 100 grams per liter.
Part number is 000 989 10 25 (500 grams)

Cooling system

20-0020 - Switching points in the cooling system
20-0050 - Cooling circuit
20-0100 - Draining, pouring in coolant - Antifreeze protection table
20-0160 - Cleaning cooling and heating system
20-0170 - Testing cooling system for leaks

Cooling thermostat

20-1100 - Removing and installing coolant thermostat

Cooling pump

20-2100 - Removing and installing coolant pump
20-2110 - Replacing connecting pipe from cylinder head coolant pump
20-2250 - Sealing coolant pump
20-2255 - Retrofitting coolant pump drain pipe

Fan couplings

20-3120 - Removing and installing viscous fan clutch
20-3140 - Removing and installing viscous fan clutch bearing bracket
20-3400 - Removing and installing, adjusting fan shroud

Radiator

20-4200 - Removing and installing radiator
20-4270 - Replacing vent connection at radiator
20-4300 - Testing cooling system pressure cap
20-4400 - Operation of electric coolant level gauge
20-4500 - Removing and installing expansion tank
20-4540 - Removing and installing overflow tank

22 - Engine Mounts

Maintenance Jobs - 1986 through 1993

2291 - Adjust engine stop

Engine Suspension

22-2110 - Removing and installing front engine mounts
22-2115 - Checking, stress-relieving front engine mounts
22-2120 - Removing and installing rear engine mount
22-2130 - Adjusting rear engine mount (freeway-hop), Model 124 USA
22-2140 - Engine bearing cooling, Model 201 (retrofitting)
22-2200 - Setting engine stop, model 124 4MATIC
22-2500 - Removing and installing engine carrier

24 - Electrical Troubleshooting

Additional Information

MultiMeter 101

24 Electrical Troubleshooting Manual

Introduction
How to Use this Manual
Symbols
Troubleshooting
Circuit Identification
Electrical Troubleshooting Manual - ETM
Electrical Troubleshooting Manual - ETM - old
Missing Pages

24 Model 124 Wire Diagrams

Introduction
Wiring Diagram System, How to Use
Acronyms
Component Locations
Wire and Plug Connection
Index
Locations
Relay and Control Modules
Index
Locations
Ground Locations
Index
Locations
Fuse Box and Fuse Location
Diagnostic Data Link Connector
Index (Model Year 1993 and on)
Model 124 Wiring Diagrams

27 - Transmission

Service Information

27.1 - Transmission oil cooler with supplemental fan
DTC - 4MATIC Diagnostic Trouble Codes
Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Transmission

27-110 - Adjusting cable for control pressure
27-115 - Removing, installing and adjusting control pressure cable with vacuum actuator
27-550 - Removing and installing transmission air-oil cooler with blower
27-600 - Removing and installing transmission with torque converter

28 - Transfer Case (4MATIC)

Service Information

28/8 - Models 124.230/290 Exchange 4-MATIC transfer case VG30
DTC - 4MATIC Diagnostic Trouble Codes
Transfer Case

BA28.00-Z-9999AZ - Tightening torques: Passenger cars: Transfer case
BE28.00-Z-9999AZ - Test and adjustment values: Passenger cars: Transfer case
BF28.00-Z-9999AZ - Capacities: Passenger cars: Transfer case
BT28.00-Z-9999AZ - Technical modifications: Passenger cars: Transfer case

 

30 - Acceleration Control System

Maintenance Jobs - 1986 through 1993

3022 - Inspecting, lubricating throttle linkage

Additional Information

Troubleshooting your Cruise Control

Accelerator control

30-0010 - Lubricating accelerator control linkage, checking ease of movement and wear (after engine wash)
30-0310 - Removing and installing engine longitudinal accelerator control shaft
30-0320 - Removing, installing and adjusting chassis accelerator control shaft, Model 107
30-0355 - Notes for test and repair work on vehicles with ASR (See also Group 42)
30-0360 - ABS/ASR and electronic accelerator pedal initial test
30-1010 - Adjusting accelerator control - (Tech Mods)
30-1050 - Testing electronic engine control
30-1151 - Removing and installing electronic accelerator pedal control unit
30-1152 - Removing and installing electronic accelerator pedal actuator
30-1156 - Removing and installing electronic accelerator pedal position sensor - (Tech Mods)
30-1321 - Removing and installing accelerator pedal
30-3022 - Removing and installing fire wall bearing with accelerator pedal lever
30-3402 - Removing, installing and adjusting Bowden cable - (Tech Mods)

Cruise control / Tempomat

30-500 - Functional description (for manual transmission version valid up to May 93)
30-502 - Hints for troubleshooting - - Select complaint...
30-504 - Testing with adapter
30-506 - Testing reference resistor
30-541 - Removing and installation of cruise control actuator
30-545 - Removing and installation of pushbutton switch
30-550 - Removing and installation of sensor (Models 124, 201)
30-561 - Adjusting connecting rod or control cable
30-565 - Removing and installation of cruise control amplifier
30-566 - Removing and installation of cruise control reference resistor
30-575 - Removing and installation of switch on clutch pedal (up to May 93)
30-576 - Installation of relay against partial load shaking
30-577 - Installation of relay against deceleration shaking
30-579 - Layout of connectors
30-580 - Wiring diagrams
30-7300 - Testing Tempomat cruise control, vehicles with ASR

Modification Notes
Programmed Repair - Tempomat / cruise control
Technical Revisions - Cruise control / Tempomat - Models 124, 129, 140, 201

31 - Hitching Mechanism

Service Information

31.2 - Installation instructions, Trailer coupling (Model 124T)


32 - Suspension

Maintenance Jobs - 1986 through 1993

3211 - Level control, ADS, ASD, 4MATIC, fluid level
3251 - Inspecting self-leveling suspension

Maintenance Jobs - 1994 through 1995

3211 - Level control, ADS, ASD fluid level

Service Information

32.02 - Conversion to AMG sports suspension, Model 124
32.06 - Conversion to AMG sports suspension, Model 124.036

Service Intro - Model Year 1992, Model 124 Sportline (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information
George Murphy on installing shocks

Shock absorbers, struts

32-0100 - Removing and installing shock absorber struts
32-0110 - Removing and installing rear shock absorber
32-0120 - Checking shock absorber strut (front)
32-0121 - Testing shock absorbers (rear)

Springs

32-0200 - Removing and installing front springs
32-0230 - Removing and installing rear springs
32-0250 - Test value for springs

Torsion bars

32-0300 - Removing and installing front torsion bar
32-0310 - Removing and installing rear torsion bar

Level control

32-0501 - Function description (level control Model 124/201) See also 40-0310 (Adjusting)

Test work

32-0510 - Testing rear axle spring struts
32-0515 - Testing front axle spring struts for leaks (Model 201)
32-0520 - Testing spring actuators on front and rear axles
32-0530 - Removing pressure oil pump and level controller on rear axle (w/ level control)
32-0537 - Testing pressure oil pump, distributor valve and level controller (Model 201)
32-0540 - General function test (Model 201)
32-0550 - Testing distributor valve for internal leaks (Model 201)
32-0570 - Testing function of electrical control valve (Model 201)
32-0580 - Testing function of electrical check valve (Model 201)

Repair work

32-0610 - Removing and installing rear axle spring struts
32-0615 - Removing and installing front axle spring struts (Model 201)
32-0620 - Removing and installing spring actuators (Model 201)
32-0630 - Emptying and filling pressure oil system
32-0640 - Remove and installing pressure oil pump
32-0645 - Replacing radial sealing ring of pressure oil pump (Engine M102,601,602,603)
32-0660 - Removing and installing control rod/connecting rod on level controller
32-0670 - Removing and installing level controller
32-0680 - Removing and installing distributor valve (Model 201)
32-0690 - Removing and installing electrical control valve (Model 201)
32-0700 - Removing and installing electrical check valve (Model 201)

Programmed repairs - Level control - - Select complaint...
Technical modifications - Steel spring suspension
Technical modifications - Level control

33 - Front Axle

Maintenance Jobs - 1986 through 1993

3310 - Front axle, checking, correcting oil level
3353 - Checking front axle ball joints
3355 - Checking ball joints using special tool

Maintenance Jobs - 1994 through 1995

3353 - Checking front axle ball joints
3355 - Checking ball joints using special tool

Service Information

Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

Bad Wheel Bearing?

Technical data

33-0010 - Technical data

Front axle halves

33-0200 - Removing and installing front axle halves
33-0260 - Removing and installing front axle shafts (4MATIC)

Front wheel hub

33-0300 - Adjusting wheel bearing play
33-0310 - Removing and installing front wheel hub
33-0320 - Replacing front wheel hub

Steering knuckle

33-0400 - Removing and installing steering knuckle
33-0420 - Removing and installing steering knuckle arm
33-0425 - Checking supporting joint of steering knuckle mounting
33-0430 - Replacing boot for supporting joint of steering knuckle mounting
33-0440 - Replacing supporting joint

Control arm

33-0510 - Removing and installing control arm
33-0526 - Replacing control arm mounting

Misc

33-0660 - Replacing rubber bellows on front axle shaft (4MATIC)

Programmed repairs - Front Axle - - Select complaint...
Technical modifications - Front axle

35 - Rear Axle

Maintenance Jobs - 1986 through 1993

3501 - Rear axle oil change
3510 - Rear axle, checking, correcting oil level
3565 - Rear axle mount, adjusting limiting stop

Maintenance Jobs - 1994 through 1995

3211 - Level control, ADS, ASD fluid level
3353 - Checking front axle ball joints
3355 - Checking ball joints using special tool
3501 - Rear axle oil change

Service Information

Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service
Additional Information

Bad Wheel Bearing?
Trailing Arm Bushing Replacement
Rear axle

35-010 - Removing and installation of rear axle complete
35-040 - Removal and installation of front and rear rubber mounts of rear suspension (See TechMods)
35-050 - Removal and installation of rear rubber mounts for center assembly mounting in rear axle bracket (See TechMods)

Wheel location system

35-110 - Removing and installation of camber strut (See TechMods)
35-111 - Removing and installation of torque strut (See TechMods)
35-112 - Removing and installation of tie rod, replacement of rubber mount (See TechMods)
35-113 - Removing and installation of thrust arm (See TechMods)
35-114 - Removing and installation of spring link, replacement of rubber mount (See TechMods)
35-115 - Removing and installation of wheel carrier
35-116 - Replacement of supporting joint on wheel carrier (wheel carrier installed)
35-130 - Removal and installation of rear axle shaft flange with angular ball bearing

Rear axle center assembly

35-520 - Removal and installation of rear axle center assembly (See TechMods) - - - Select model...
35-530 - Replacement of radial sealing ring on bevel drive pinion (rear axle center assembly installed)
35-540 - Replacement of radial sealing ring on connecting flange of rear axle shaft - - - Select size...
35-620 - Removal and installation of rear axle shafts (See TechMods)
35-660 - Replacement of rubber cup seal on rear axle shaft (See TechMods)
35-670 - Removal and installation of connecting flange of rear axle shaft
- with 185 mm dia ring gear

M18 - Contents
35-0550C - A1 Dismantling and assembling rear axle center assembly, adjusting gear assembly (185 mm dia)
35-0560A - M2 Disassembling and assembling differential
35-519 - Bleeding the ASD hydraulic system
35-519C - K3 Bleeding the ASD hydraulic system (Model W129, W202)
35-0545C - F4 Repairing ASD ring cylinder (185 mm dia)
35-0560C - E4 Dismantling and assembling ASD differential
D8 - Testing and repair work
D8 thru M9 ...
N9 thru C11 ...
E11 thru P13...
A14 thru K15...
N15 - Function descriptions, model/equipment combinations
N16 - Special tools ??
A17 - Technical modifications - - - Select mod...
G18 - Shop made tools - - - Select tool...
L18 - Modification note
- with 210 mm dia ring gear

M18 - Contents
35-0550D - A1 Dismantling and assembling rear axle center assembly, adjusting gear assembly (210 mm dia)
35-0560A - M2 Disassembling and assembling differential
35-519 - Bleeding the ASD hydraulic system
35-519A - G3 Bleeding the ASD hydraulic system (W140)
35-519C - K3 Bleeding the ASD hydraulic system (Model W129, W202)
35-0545D - N3 Repairing ASD ring cylinder (210 mm dia)
35-0560C - E4 Dismantling and assembling ASD differential
M10 - Testing and repair work
M10 thru O13 ...
P13 thru J13 ...
P15 thru N16 ...
A17 - Features, installation survey for rear axle center assemblies (210 mm dia)
H17 - Technical modifications - - - Select mod...
G18 - Shop made tools - - - Select tool...
L18 - Modification note
Technical modifications - Rear axle - wheel location system and drive
Program Repairs
Complaint/type of modification...

 

40 - Wheels, Chassis Measurements

Maintenance Jobs - 1986 through 1993

4050 - Inspecting/rotating wheels
4051 - Checking tires
4060 - Correcting tire pressure
4070 - Tightening wheel bolts

Maintenance Jobs - 1994 through 1995

4050 - Inspecting/rotating wheels
4051 - Inspecting tires
4060 - Correcting tire pressure
4070 - Tightening wheel bolts

Service Information

Service Intro - Model Year 1992, Model 124 Sportline (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Star Bulletin

40.20/42b - Vehicle alignment specifications available on software CD

Test and adjustment values

40-0001 - Test and adjustment values

Preparations for chassis alignment

40-0200 - General information on chassis alignment
40-0230 - Attachment of Mercedes-Benz quick-clamp holders

Vehicle level, ball point position

40-0300 - Checking and adjusting vehicle level at front and rear axles
40-0302 - Checking and adjusting vehicle level in vehicles equipped with level control on front and rear axles (Model 201)
40-0310 - Checking and adjusting control point of level control
40-0321 - Checking and adjusting ball point position

Wheel alignment

40-0322 - Checking and adjusting camber and caster at front axle
40-0323 - Checking and adjusting toe-in at front axle
40-0325 - Checking toe-out on turns
40-0331 - Checking camber at rear axle
40-0332 - Checking and adjusting toe-in at rear axle

Accident measurement

40-0400 - Checking vehicles in or suspected of being involved in an accident
40-0410 - Measuring rear axle carrier (removed)
40-0420 - Measuring rear axle spring link, camber strut, torque strut, thrust arm and track rod
40-0425 - Measuring wheel carrier
40-0451 - Measuring steering knuckle
40-0452 - Measuring lower wishbone

Tires and wheels

40-0991A - Survey of tires/disk wheels/recommended tire make/snow chains
40-0992A - Survey of tires/disk wheels/recommended tire make/snow chains for national versions
40-1010A - Disk wheel
40-1020A - Tires
40-1025A - Checking tires for lateral and radial runout
40-1030A - Replacing tires
40-1040A - Balancing wheels
40-1050A - Disc wheel and tire conversion and chassis modifications
40-1070A - Snow chains

Programmed repairs - Chassis alignment - - Select complaint...

Misc files

40-0999ZZ Contents
40-1000ZZ Contents

Index
General notes
Maintenance and care
Modification notes
Testing and repair work

41 - Propeller Shaft

Maintenance Jobs - 1986 through 1993

4152 - Inspecting drive shaft flexible coupling

Maintenance Jobs - 1994 through 1995

4152 - Inspecting drive shaft flexible coupling

Service Information

Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Propeller Shaft

41-050 - Removal and installation of propeller shaft - - Select page...
41-060 - Removal and installation of propeller shaft front axle on 4MATIC
41-080 - Balancing rear propeller shaft on model 124
41-085 - Measuring propeller shaft alignment with mechanical propeller shaft articulation angle meter
41-100 - Removal and installation of propeller shaft intermediate bearing renewing of grooved ball bearing - - Select page...
41-200 - Renewing centering sleeve - - Select page...
AF41.10-U-1200BG - Booming (thrumming) in speed range from 110 km/h to 150 km/h - early
AF41.10-U-1200CG - Booming (thrumming) in speed range from 110 km/h to 150 km/h - late
Programmed Repairs - Propeller shaft -
Select complaint...

42 - Brake - Hydraulical and Mechanical System

Maintenance Jobs - 1986 through 1993

4210 - Checking brake fluid level
4250 - Inspecting brake lines for damage
4251 - Checking brake pad/disk thickness
4252 - Inspecting, cleaning brake disks
4256 - Inspecting parking brake cable
4261 - Adjusting parking brake
4280 - Replacing brake fluid
4290 - Brake test, parking brake check

Maintenance Jobs - 1994 through 1995

4210 - Checking brake fluid level
4251 - Checking brake pad/disk thickness
4256 - Inspecting parking brake cable
4261 - Adjusting parking brake
4280 - Replacing brake fluid
4290 - Brake test, parking brake check

Service Information

Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

Brake Caliper Rebuild

Brake system

42-0010 - Bleeding brake system and replacing brake fluid
42-0013 - Replacing brake hoses
42-0015 - Checking brake system for leakage using pressure tester
42-0040 - Removal and installation of mechanical stop lamp switch

Brake caliper

42-0100 - Removal and installation of fixed caliper on front axle
42-0110 - Removal and installation of floating caliper on front axle
42-0120 - Removal and installation of fixed caliper on rear axle
42-0150 - Disassembly and assembly of fixed caliper, replacement of parts according to condition
42-0152 - Disassembly and assembly of floating caliper, replacement of parts according to condition
42-0160 - Checking and replacing brake pads

Brake disc

42-0220 - Checking, removal and installation of brake disc on front axle
42-0228 - Checking, removal and installation of brake disc on rear axle
42-0260 - Cleaning brake discs using cleaning pads

Stepped tandem master brake cylinder

42-0310 - Removal and installation of stepped tandem master brake cylinder
42-0315 - Reconditioning stepped tandem master brake cylinder

Parking brake

42-0510 - Removal and installation of parking brake pedal assembly
42-0515 - Removal and installation of hand brake lever for parking brake
42-0516 - Removal and installation of release knob for parking brake hand lever
42-0520 - Removal and installation of front brake control cable
42-0525 - Removal and installation of rear brake control cable
42-0530 - Removal and installation of parking brake shoes
42-0540 - Adjusting parking brakes

Anti-lock braking system

42-0700 - Design and function of anti-lock braking system - - Select page...
42-0702 - Important information on repairs
42-0705 - Removal and installation of hydraulic unit (A7)
42-0708 - Removal and installation of ABS control unit
42-0710 - Removal and installation of relays for solenoid valve and charge/return pump
42-0711 - Removal and installation of overvoltage protection/basic module
42-0712 - Removal and installation of front wheel-speed sensors
42-0714 - Removal and installation of rear wheel-speed sensors
42-0720 - Electrical test program - Model 124 (except 124.034), 201
42-0725 - Function and test of 5, 7 and 9-pin relays Overvoltage protection from 9/85
42-0730 - Test instructions for ABS tester with fault memory PN 124 589 22 21 00

Acceleration skid control (ASR II)

42-0800 - Design and function of acceleration skid control ASR II - - Select page...
42-0810 - Notes for towing, or test & repair work, & handling ASR components on accident vehicles
42-0816 - Removal and installation of ASR hydraulic unit (A7/3)
42-0818 - Removal and installation of ASR pressurizing pump (M15)
42-0819 - Removal and installation of accumulator
42-0820 - Removal and installation of left or right rear axle speed sensors
42-0821 - Removal and installation of ASR control unit (N30/1)
42-0822 - Test program - ASR II electrics/electronics
42-0824 - Test program - ASR II hydraulics

Programmed repairs - Brakes - - Select complaint...
Programmed repairs - Brakes, ABS - - Select complaint...
Technical modifications - Brakes
Technical modifications - Brakes, ASR

43 - Brake - Pneumatic System

43-0230 - Testing check valve
43-0325 - Checking brake booster
43-0350 - Removal and installation of brake booster

46 - Steering System

Maintenance Jobs - 1986 through 1993

4611 - Checking power steering fluid level
4650 - Checking steering play
4671 - Retightening steering bolts

Maintenance Jobs - 1994 through 1995

4611 - Checking power steering fluid level
4650 - Checking steering play
4671 - Retightening steering bolts

Service Information

Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service
Service Intro - Model Year 1992, Model 124 Sportline (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Survey steering

46-0001 - Survey of steering gears
46-0002 - Survey of power steering pumps (LHP)/tandem pumps (TANP)
46-0003 - Survey of steering linkage

Checking steering gear

46-0110 - Checking play of steering components
46-0120 - Checking and adjusting friction torque of steering gear
46-0140 - Replacing steering gear when performing repairs to vehicle involved in accident
46-3070 - Testing oil pressure of power steering pump

Repairing steering gear

46-0230 - Important notes regarding repair of steering gear
46-0231 - Removing and installing parameter steering (PML) P-valve (Y10)
46-0232 - Removing, installing and checking bearing cover with pitman arm shaft
46-0233 - Disassembling and assembling pitman arm shaft/bearing cover
46-0234 - Removing and installing adjusting screw
46-0235 - Removing, installing and checking play compensator
46-0236 - Removing and installing steering/bearing cover, replacing radial seal ring
46-0238 - Removing, installing and checking control valve

Repairing power steering pump

46-0715 - Filling and bleeding the power steering pump/tandem pump
46-0730 - Disassembling and assembling power steering pump/tandem pump

Steering gear and pitman arm

46-3230 - Adjusting steering gear in vehicle
46-3265 - Removing, installing, replacing sealing ring in lower housing cover
46-3400 - Removing and installing of steering gear

Power steering pump

46-4000 - Removing and installing power steering pump
46-4080 - Filling and bleeding power steering pump

Steering linkage and idler arm

46-6177 - Removing and installing drag link
46-6317 - Removing and installing steering idler arm, replacing plain rubber mount
46-7007 - Removing and installing tie rod
46-7202 - Replacing boot for tie rod ball joint and drag link ball joint

Wheel, jacket tube, shaft, lock

46-7700 - Removing, checking and installing jacket tube
46-7740 - Dismantling and assembling jacket tube
46-8010 - Removing and installing the steering lock complete
46-8110 - Removing and installing lock cylinder
46-8240 - Removing and installing steering wheel
46-8300 - Removing and installing contact spiral
46-8310 - Removing and installing steering angle sensor
46-8340 - Removing and installing slip ring on steering wheel

Programmed repairs - Steering - - Select complaint...
Programmed repairs - Steering gear and power steering pumps - - Select complaint...
Technical modifications - Steering
Technical modifications - Steering gear 765.9 and power steering pumps

47 - Fuel System

Maintenance Jobs - 1986 through 1993

4750 - Checking fuel system condition
Fuel System

47-0005 - Fuel cooler
47-0010 - Fuel tank with splash bowl
47-0020 - Fuel gauge sensor
47-0030 - Fuel tank positive and negative ventilation system
47-0200 - Fuel evaporation control system
47-4100 - Removing and installing fuel tank - (Tech Mods) - (Tech Mods)
47-7000 - Removing and installing fuel gauge sender - (Tech Mods)
47-8021 - Removing and installing fuel expansion tank. model 107 - (Tech Mods)
47-8201 - Testing fuel evaporation control system - (Tech Mods)
47-8212 - Removing and installing activated charcoal filter - (Tech Mods)
47-8252 - Removing and installing regeneration switchover valve (fuel evaporation) - (Tech Mods)

49 - Exhaust System

Maintenance Jobs - 1986 through 1993

4970 - Retightening exhaust flange
4971 - Retightening exhaust system connections

Exhaust System

49-0005 - Catalytic converter
49-0025 - General notes regarding vehicles with catalytic converter
49-0300 - Converting vehicle with catalytic converter
49-4940 - Replacing center, tail silencer
49-5531 - Removing and installing closed-loop catalytic converter
49-5910 - Retrofitting open-loop catalytic converter
49-7000 - Removing and installing exhaust system
49-7280 - Removing, installing, replacing and bolting exhaust system as of plug connection
49-8701 - Replacing carrier for exhaust bracket at transmission

 

54 - Chassis Electrical, Instruments

Maintenance Jobs - 1986 through 1993

5410 - Checking and correcting battery fluid level
5451 - Checking warning and indicator lamps

Maintenance Jobs - 1994 through 1995

5410 - Checking and correcting battery fluid level
5451 - Checking warning and indicator lamps

Service Information

54.6 - Installation Instructions, Electric outside temperature gauge
54/40a - Battery jump-starting and charging

Service Intro - Model Year 1992, Model 124 (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

Battery Cradle Inspection and Cleanup
Battery, fuses

54-0001 - Initial filling of battery
54-0006 - Treatment of battery when vehicle taken out of use
54-0080 - Checking marten protection system (Model W124.0 up to approx 9/92)
54-0180 - Installing separate fuse for blower motor (up to 6/86)

Instrument panel

54-0242 - Overvoltage protection relay
54-0246 - Removing and installing odometer, <s> (up to 03/93) fehlt
54-0248 - Hall sensor, road speed signal with mechanical/electronic
54-0252 - Testing electronic speedometer. model 124.034/036

Gauges

54-0254 - Testing electric oil pressure gauge
54-0255 - Testing gauge for economic driving (ECONOMY-up to 6/90)
54-0256 - Function of fuel gauge sensor
54-0257 - Testing fuel gauge
54-0264 - Testing windscreen washer level indicator
54-0320 - Removing and installing rear dome lamp and switch
54-0345 - Location and identification of fuses and unfused connections
54-0405 - Warning device for parking brake (rental vehicles)

Battery, fuses

54-1030 - Testing no-load current consumption
54-1130 - Charging battery, testing state and capacity
54-1255 - Removing and installing front fuse and relay box and location of auxiliary fuse boxes
54-1500 - Removing and installing combination relays

Horn, modules, seat belts

54-1555 - Removing and installing horns of two-tone signal or fanfares
54-2300 - Removing and installing control units of module box (Model W124.034/.036)
54-2311 - Removing, installing control modules (except Model W124.034/.036)
54-2312 - Seat belt warning control unit <USA>

Modules, switches

54-2350 - Removing and installing blower motor for module box (Model W124.034/.035)
54-2360 - Removing and installing module box (Model W124.034/.036)
54-2800 - Removing and installing combination switch
54-3190 - Removing and installing switches in center console
54-3250 - Removing and installing exterior light switch

Instrument panel

54-5125 - Electrical connections of optional equipment
54-5245 - Removing and installing clock/tachometer
54-5320 - Removing and installing speedometer
54-5600 - Removing and installing speedometer shaft (except Model W124.034/.036)
54-6015 - Removing and installing instrument cluster

Lamps, gauges, displays

54-6070 - Testing operation of exterior lamp failure indicator
54-6075 - Removing and installing exterior lamp failure monitoring unit
54-6112 - Removing and installing gauges
54-6114 - Removing and installing function display (ASD, ASR, 4MATIC)
54-6320 - Testing electrical outside temperature display

Display

54-6341 - Removing and installing temperature sensor of outside temp display
54-6940 - Function of electronic brightness control of instrument lighting
Programmed repairs - Electrical System I - -Select complaint...
Technical modifications - Electrical System I

60 - Body Shell

Maintenance Jobs - 1986 through 1993

6030 - Cleaning water drains
9850 - Checking body for paint damage

Service Information

Service Intro - Model Year 1992, 400E/500E, Introduction into Service
Star Bulletin

60/13 - Approved Paintless Dent Repair (PDR)

67 - Windows

Windshield

67-100 - Removal and installation of windshield glass - - Select page...

Back window

67-200 - Removal and installation of of back window - - Select page...
67-220 - Removal and installation of ornamental frame on back window - - Select page...

Rear side window

67-400 - Removal and installation of of side window in rear passenger compartment - - Select page...
67-405 - Removal and installation of of side window in loading space (T-sedan)
67-420 - Adjusting rear side windows - - Select page...


68 - Interior Equipment

Instrument panel

68-100 - Removal and installation of instrument panel
68-105 - Removal and installation of cover for speaker (front)
68-150 - Removal and installation of cover under instrument panel

Center console

68-200 - Removal and installation of center console
68-205 - Removal and installation of lateral trim on center console
68-230 - Removal and installation of cover on shift lever

Trim

68-400 - Removal and installation of trim on roof frame front
68-405 - Removal and installation of reveal molding laterally on windshield
68-410 - Removal and installation of panel above windshield (convertible)
68-425 - Removal and installation of reveal molding at top of windshield (convertible)
68-430 - Removal and installation of headlining
68-447 - Removal and installation of trim on roof frame rear (T-sedan)
68-449 - Removal and installation of trim on rear pillar
68-456 - Removal and installation of side wall trim in rear passenger compartment (coupe/convertible)
68-458 - Removal and installation of hat rack (parcel shelf)
68-460 - Removal and installation of electrical roller blind for rear window
68-470 - Removal and installation of trim on center pillar
68-475 - Removal and installation of trim on rear center pillar (T-sedan)
68-478 - Removal and installation of trim in rear compartment (T-sedan)
68-485 - Removal and installation of trim on rear center piece
Programmed Repair - Interior trim - - Select complaint...

 

72 - Doors

Maintenance Jobs - 1986 through 1993

7220 - Lubricating door hinges
7221 - Lubricating door locks

Service Information

72/14 - Replacement of door interior trim panel components

Additional Information

Door Panel Removal

Door

72-050 - Removal, installation and adjustment of driver's door
72-051 - Replacing driver's door
72-060 - Removal, installation and adjustment of rear door
72-061 - Replacing rear door

Lining and window

72-100 - Removal and installation of door lining on driver's door
72-101 - Removal and installation of door lining on rear door
72-103 - Disassembly and assembly of door lining on driver's door
72-105 - Disassembly and assembly of door lining on tailgate (T-sedan)
72-110 - Removal and installation of window crank
72-160 - Removal and installation of sealing strip
72-170 - Removal and installation of outside sealing strip
72-180 - Removal and installation of window lift (power window) on driver's door
72-181 - Removal and installation of window lift (power window) on rear door
72-185 - Removal and installation of electric window lift on driver's door
72-187 - Removal and installation of electric window lift on rear door
72-190 - Removal and installation of crank window lift on driver's door
72-191 - Removal and installation of crank window lift on rear door
72-195 - Adjustment of crank window on driver's door
72-197 - Removal and installation of fixed window on rear door
72-198 - Removal and installation of flexible window rail on driver's door
72-199 - Removal and installation of flexible window rail on rear door

Locks and seals

72-210 - Removal and installation of door holder
72-220 - Removal and installation of sealing frame on driver's or rear door
72-230 - Removal and installation of inside door actuation on driver's door
72-231 - Removal and installation of inside door actuation on rear door
72-240 - Removal and installation of outside door handle on driver's door
72-241 - Removal and installation of outside door handle on rear door
72-250 - Removal and installation of door lock on driver's door
72-251 - Removal and installation of door lock on rear door

T-sedan

72-255 - Removal and installation of door lock on tailgate (T-sedan)
72-260 - Functional description tailgate lock with electromechanical closing assist (T-sedan)
72-265 - Electrical wiring diagram (T-sedan)
72-270 - Testing and replacing microswitch (T-sedan)
72-275 - Checking and replacing motor (T-sedan)
72-350 - Removal and installation of tailgate (T-sedan)
72-351 - Adjustment of tailgate (T-sedan)
72-355 - Removing and installation of glass pane on tailgate (T-sedan)
72-360 - Removing and installation of gas pressure spring on tailgate
72-365 - Removing and installation of ledge grips on tailgate

77 - Roofs

Maintenance Jobs - 1986 through 1993

7710 - Hydraulic top, checking and correcting fluid level
7730 - Sun roof, clean and grease rails
7750 - Soft top, checking locking tabs

Maintenance Jobs - 1994 through 1995

7710 - Hydraulic top, checking and correcting fluid level
7730 - Sun roof, clean and grease rails
7750 - Soft top, checking locking tabs

Additional Information

MB slide paste P/N - 001 989 14 51

Tilting/sliding sun roof

77-050 - Removal and installation of headlining on sun roof
77-055 - Removal and installation of headlining on cabriolet
77-100 - Removal and installation of tilting/sliding sun roof top panel
77-110 - Adjustment of tilting/sliding sun roof top panel
77-130 - Removal and installation of gasket and holding rails on sun roof opening
77-140 - Removal and installation of control cable (and adjustment of sun roof)
77-150 - Removal and installation of tube
77-160 - Removal and installation of tube (T-model)
77-170 - Removal and installation of angular lifting arm on tilting/sliding sun roof
77-180 - Removal and installation of motor and gear unit
77-195 - Checking and adjusting slip clutch for sun roof motor
77-250 - Removal and installation of wind deflector on tilting/sliding sun roof
77-300 - Removal and installation of tilting/sliding sun roof frame

Soft top

77-305 - Removal and installation of soft top (hydraulically controled soft top)
77-308 - Replacement of soft top cover
77-310 - Adjustment of soft top
77-315 - Removal and installation of rear window on cabriolet
77-330 - Removal and installation of left and right catches
77-334 - Adjustment of handle on catch
77-402 - Removal and installation of roll-over bar retracted and extended switches
77-405 - Removal and installation of of soft top compartment "open" switch
77-418 - Removal and installation of switch assembly on left soft top mount
77-435 - Removal and installation of soft top bow "up" (raised) switch
77-440 - Removal, installation and adjustment of soft top compartment cover switches "closed" and "locked"
77-450 - Removal and installation of soft top control unit

Roof rail

77-500 - Removal and installation of roof rail (T-model)
77-510 - Removal and installation of mounts for roof rack (coupe)

 

80 - Central Locking System

Additional Information

Model W123 central locking

Central Locking System

80-010 - Function description - - Select page...
80-090 - Checking function of central locking system
80-104 - Checking electrical function of central locking system
80-108 - Checking pneumatic function of supply pump
80-112 - Checking electrical function of actuator (except vehicles w/ code 885)
80-116 - Checking pneumatic function of actuator
80-120 - Checking central locking system for leaks - - Select page...
80-125 - Checking pneumatic line for leaks
80-215 - Removing and installing actuator (S47, S48, S49) - - Select page...
80-220 - Removing and installing rear door actuator
80-230 - Removing and installing fuel filler flap actuator
80-270 - Removing and installing supply pump (M14/1)

Infrared Remote Control

80-400 - Function description of infrared remote control - - Select page...
80-420 - Checking and replacing batteries for infrared transmitter key and synchronizing and desynchronizing transmitter signal
80-422 - Removing and installing folding key on infrared transmitter key
80-430 - Removing and installing driver door infrared remote control (IFZ) receiver unit (A26/1)
80-435 - Removing and installing trunk lid IFZ receiver unit (A26/3)
80-440 - Removing and installing infrared remote control unit (IFZ) (N54)
80-455 - Removing and installing RCL control module (N54) and IR DAS control module (N54/1)

Schematics and Miscellaneous

80-800 - Electrical wiring diagrams
80-900 - Function diagrams and Programmed Repairs (troubleshooting) - - Select page...
Technical modifications - Central locking system

82 - Lights, Wipers, Radio, Antenna, Misc Body Electrics

Maintenance Jobs - 1986 through 1993

8210 - Checking, correcting windshield washer fluid level
8230 - Cleaning cassette deck tone head
8231 - Cleaning antenna mast
8251 - Headlamp and exterior lamp inspection
8252 - Windshield and headlamp wiper/washer inspection
8280 - Replacing windshield wiper blade

Maintenance Jobs - 1994 through 1995

8210 - Checking, correcting windshield washer fluid level
8230 - Cleaning cassette deck tone head
8231 - Cleaning antenna mast
8251 - Headlamp and exterior lamp inspection
8252 - Windshield and headlamp wiper/washer inspection
8280 - Replacing windshield wiper blade

Service Information

82/69b - Installation of CD Changer, MY 1994
82/81 - Bonding headlamp lens to housing

Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

5152 - Operation Guide, Becker 1432

Lamps

82-0010 - Removing and installing dome lamp control unit and rear dome lamp
82-0012 - Function of dome lamp control unit
82-0070 - Function of daytime driving lamp <CDN><IS><N><S>
82-0071 - Retrofitting daytime driving lamp control <CDN><IS><N><S>
82-0255 - Removing and installing trunk lamp switch
82-0355 - Function of city driving lamp <GB>
82-0356 - Testing city driving lamp <GB>
82-1130 - Adjusting front lighting
82-1201 - Removing and installing bulbs of headlamp unit
82-1285 - Removing and installing bulb for ashtray illumination
82-1820 - Removing and installing lens of headlamp unit
82-2850 - Removing and installing headlamp reflector
82-2930 - Removing and installing fog lamp reflector or high beam reflector (124.036)
82-4011 - Testing headlamp range control (except<USA>)
82-4730 - Removing and installing headlamp unit
82-4905 - Removing and installing taillamp
82-5103 - Removing and installing fog lamp (124.036)
82-5105 - Removing and installing bulb of fog lamp (124.036)
82-5161 - Removing and installing license plate lamp
82-5375 - Function of center high-mounted stop lamp <AUS><USA><NZ>
82-5891 - Light warning buzzer (except <USA>)

Sliding roof

82-0392 - Function of tilting/sliding roof, wiring diagrams
82-0393 - Convenience control tilting/sliding roof

Heated rear screen

82-0395 - Wiring diagram heated rear screen

Wipers, washer system

82-0540 - Function of headlamp wash/wipe system
82-0610 - Removing and installing rubber wiper blade
82-0680 - Removing and installing wiper motor (also see Ian's write-up)
82-0760 - Removing and installing wiper linkage
82-0765 - Removing and installing rubber seal below wiper gear
82-0770 - Removing and installing tail gate wiper motor
82-0790 - Function of heated windscreen washer nozzle
82-0795 - Function of heated windscreen washer system

Seats, mirrors

82-0800 - Function of seat heaters
82-0834 - Outside rear-view mirror with electrically heated mirror glass
82-0865 - Removing and installing power seat adjustment switch
82-0860 - Front power seat adjustment
82-0866 - Testing voltage-coded switch for power seat adjustment with memory as of 6/90

Windows

82-0605 - Convenience control power windows
82-0840 - Power windows

Anti-theft, conveniance system

82-0980 - Function of anti-theft warning system (EDW)
82-0983 - Testing anti-theft warning system (ATA)
82-0995 - Troubleshooting table convenience control power windows/tilting/sliding roof (ECE)

Radio, sound system, speakers

5152 - Operation Guide, Becker 1432
82-7500 - Operating radio
82-7502 - Removing and installing radio
82-7507 - Removing and installing CD player with changer
82-7605 - Removing and installing receiver and amplifier (up to 8/93)
82-7606 - Mechanically releasing and removing magazine (6 CD changer)
82-7720 - Removing and installing amplifier of sound system
82-7725 - Removing and installing amplifier of active bass speakers
82-7833 - Removing and installing speakers in instrument panel
82-7836 - Removing and installing speakers in rear
82-7845 - Removing and installing speakers in front doors
82-7874 - Removing and installing speakers in rear doors (Station wagon)

Antenna

82-0530 - Function of automatic antenna (up to approx 6/90) <USA>
82-8105 - Removing and installing antenna
82-8200 - Removing and installing telescope of automatic antenna

Programmed repairs - Electrical System II - - Select complaint...
Programmed repairs - Electrical System III - - Select complaint...
Technical modifications - Body, electrical system II
Technical modifications - Body, electrical system III

83 - Climate Control System

Maintenance Jobs - 1986 through 1993

8312 - Checking, correcting A/C refrigerant charge
8381 - Replacing dust filter for heating/ventilation
8382 - Replacing active charcoal filter
8383 - Replacing recirculating air filter

Maintenance Jobs - 1994 through 1995

8312 - Checking, correcting A/C refrigerant charge
8381 - Replacing dust filter for heating/ventilation
8382 - Replacing active charcoal filter
8383 - Replacing recirculating air filter
8384 - Replacing activated charcoal prefilter
AP83_00-8381 - Replacing dust filter for heater/ventilation

Service Information

83/83 - Conversion of R12 to environmentally friendly R134a

General, technical data and Miscellaneous

00-005 - Instructions for use of Service Manual
00-010 - Engine and Vehicle Identification
00-015 - Vehicle Identification Number Locations
83-040 - Grille on air inlet removal and installation - same as 83-140
83-140 - Grille on air inlet removal and installation (also see Ian's write-up)

Section I - Heating and Ventilation

83-522 - Removal and installation of heat exchange
83-525 - Checking oil level in A/C compressor
83-530 - Removal and installation of A/C compressor
83-532 - Removal and installation of speed sensor on A/C compressor

Section I - Air Conditioning I

83-534 - Replacing shaft seal on A/C compressor
83-536 - Removal and installation of electromagnetic clutch, removal, installation and checking of solenoid coil
83-537 - Removal and installation of series resistor for auxiliary fan
83-538 - Removal and installation of condenser
83-540 - Removal and installation of fluid reservoir
83-542 - Testing, removal and installation of pressure switch for A/C compressor in fluid reservoir
83-544 - Testing, removal and installation of pressure switch for auxiliary fan in fluid reservoir
83-546 - Testing, removal and installation of evaporator temperature sensor
83-547 - Testing, removal and installation of outside air temperature sensor
83-552 - Removal and installation of expansion valve
83-554 - Removal and installation of evaporator
83-556 - Removal and installation of blower motor (also see Ian's write-up)
83-558 - Removal and installation of air conditioning/automatic temperature control unit (up to 8/87)
83-560 - Removal and replacement of auxiliary fan
83-562 - Testing, removal and installation of switch for air conditioning/automatic temperature control (up to 8/87)
83-564 - Testing, removal and installation of switch for fresh air/recirculated air (up to 8/87)
83-566 - Removal and installation of switch-over valve (Y13/1) or 4-point valve block (Y11) for fresh air/recirculated air flap
83-568 - Removal and installation of vacuum elements
83-570 - Testing, removal and installation of speed sensor on starter ring gear (model 124.1)

Section II - Air Conditioning II

83-600 - Description of function of automatic climate control - - Select page...
83-601 - Checking functions of automatic climate control - - Select page...
83-602 - Checking regulating quality and heating output
83-603 - Testing the automatic climate control with the impulse counter (as of 9/87)
83-604 - Checking electric components of the automatic climate control - - Select page...
83-605 - Checking compressor cutoff and remedial measures - - Select page...
83-606 - Electric circuit diagrams
83-607 - Checking refrigerating capacity (short test)
83-608 - Checking refrigerating capacity and suction/high pressure
83-620 - Checking flap control vacuum system for leaks - - Select page...
83-622 - Removal and installation of heat exchanger
83-625 - Removal and installation of mono valve (Y19) or heating system supply unit (A31)
83-630 - Removal and installation of heating water circulating pump (M13 or A31m1)
83-635 - Automatic climate control unit - - Select page...
83-637 - Removal and installation of aspirator blower (M9) for temperature sensor interior air
83-640 - Removal and installation, testing of temperature sensor interior air
83-645 - Removal and installation, testing of temperature sensor heat exchanger
83-646 - Removal and installation, testing of temperature sensor evaporator
83-647 - Removal and installation, testing of temperature sensor outside air
83-648 - Removal and installation, testing of fresh/recirculated air switch
83-660 - Removal and installation of switchover valve block
83-665 - Removal and installation of vacuum elements - -Select page...
83-670 - Removal and installation of electronic blower regulator
83-675 - Removal and installation of Hall-sensorq

Supplement A

Supplement A - Model Year 1986, Model 124 Automatic climate control - - Select page...

86 - Special Equipment

Service Information

31.2 - Installation instructions, Trailer coupling (Model 124T)
58.1 - Installation instructions, Warning triangle
84.1 - Installation instructions, Alustyle Basic carrier bars
84.2 - Installation instructions, Safety reserve cannister
86.1 - Installation instructions, Fire extinguisher
86.2 - Installation instructions, Double roller blind (Model 124T)
86.3 - Installation instructions, Oddments box on driver's seat

88 - Body Panels and Bumpers

Maintenance Jobs - 1986 through 1993

6030 - Cleaning water drains
6190 - Removing and installing engine compartment lower panel
8820 - Lubricating folding side mirror
8821 - Lubricating hood

Maintenance Jobs - 1994 through 1995

6190 - Removing and installing engine compartment lower panel
8821 - Lubricating hood

Service Information

88.03 - AMG Trim panels on model 124

Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Fender

88-100 - Removal and installation of front fender

Bumper

88-200 - Removal and installation of front bumper
88-205 - Removal and installation of molding on front bumper
88-210 - Disassembly and assembly of front and rear bumpers
88-220 - Removal and installation of rear bumper
88-225 - Removal and installation of of molding on rear bumper

Engine hood

88-300 - Removal and installation of engine hood
88-302 - Adjustment of engine hood
88-306 - Removal and installation of engine hood hinge
88-310 - Removal and installation of control cable for engine hood
88-400 - Removal and installation of radiator cowling
88-401 - Removal and installation of radiator grille
88-402 - Removal and installation of trim strips on radiator grille
88-405 - Removal and installation of Mercedes star

Trunk lid

88-500 - Removal and installation of trunk lid
88-505 - Attachment of model designation on trunk lid
88-512 - Removal and installation of hinge lever on trunk lid and soft top compartment cover
88-520 - Adjustment of trunk lid
88-600 - Removal, installation and adjustment of soft top compartment

Detachable body components

88-800 - Removal and installation of trim on side wall
88-802 - Removal and installation of protective strip on side wall
88-830 - Removal and installation of trim on frame side member (coupe)
88-855 - Removal and installation of water deflector on front wall pillar and on roof
88-860 - Removal and installation of sectional sealing strip on roof frame (coupe)
88-900 - Removal and installation of outside mirror
88-905 - Removal and installation of electrically adjustable outside mirror

 

Have fun.

 

Thanks, appreciate your checking on me.

 

91 - Seats and Restraints

Maintenance Jobs - 1986 through 1993

9150 - Inspecting safety belts for damage
9151 - Backrest lock - check operation

Maintenance Jobs - 1994 through 1995

9150 - Inspecting safety belts for damage
9151 - Backrest lock - check operation

Service Information

AF91.10-U-2101A - Front seat cushion has insufficient side support
AF91.12-U-3000A - Rear seat cushion too soft or bottoms out
Service Intro - Model Year 1992, Model 124 Sportline (USA), Introduction into Service
Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

W124 Front Seat Removal - Neil Villacortabuer

Head restraints

91-060 - Removal and installation of adjusting rail for head restraint
91-070 - Removal and installation of guide rail for head restraint

Driver's seat

91-100 - Removal and installation of driver's seat
91-110 - Removal and installation of front passenger's seat
91-112 - Layout and operation of backrest lock (coupe)
91-115 - Removal and installation vacuum element of front seats (coupe)
91-119 - Removal and installation vacuum switch of driver's seat (coupe)
91-125 - Removal and installation of gear unit for backrest adjustment
91-145 - Removal and installation of driver's seat height adjustment
91-162 - Function diagram of backrest lock (coupe)
91-165 - Eliminating noises from front seats
91-168 - Removal and installation of armrest with lifting mechanism on driver's seat (coupe)

Rear seat

91-170 - Removal and installation of rear seat and rear seat backrest
91-173 - Modification of rear seat backrest mounting (coupe)
91-175 - Removal and installation of folding armrest for rear seat (coupe)

Seat coverings

91-180 - Removal and installation of driver's seat cushion cover
91-182 - Removal and installation of driver's backrest cover
91-190 - Removal and installation of tensioning member on front seat backrest

Seat belts, tensioners and extenders

91-502 - Removal and installation of front belt tensioner
91-508 - Removal and installation of complete seat belt extender
91-509 - Removal and installation of seat belt extender rack
91-510 - Removal and installation of rear seat belts
91-515 - Removal and installation of seat belt extender microswitch complete with lead
91-520 - Removal and installation of seat belt extender control unit

Airbag, belt tensioner

91-600 - Description of operation of airbag with belt tensioner - - Select page...
91-610 - Safety regulations for airbags and belt tensioners - - Select page...
91-622 - Removing and installing control unit for airbag and belt tensioners - - Select page...
91-625 - Renewal regulations for seat belts
91-635 - Removing and installing seat belt with belt tensioner
91-638 - Removing and installing belt buckle
91-640 - Removing and installing reserve power source for airbag and belt tensioner (up to 09/87)
91-650 - Removing and installing voltage transformer for airbag and belt tensioner (up to 09/87)
91-660 - Removing and installing airbag unit in steering wheel
91-680 - Removing and installing passenger airbag unit
91-700 - Test program for airbag and belt tensioner (up to 09/87) and airbag 1/3
91-710 - Test program for airbag and belt tensioner (as of 09/87)
91-750 - Test program for belt tensioner (without airbag)

Roll-over bar

91-800 - Function description of roll-over bar - - Select page...
91-820 - Safety regulations for roll-over bars
91-830 - Testing function of roll-over bar
91-840 - Removal and installation of roll-over bar control unit
91-845 - Function test of rear axle switches for roll-over bar (S83/2, /3)
91-860 - Removal and installation of left and right rear axle switches
91-900 - Removal and installation of roll-over bar

Programmed repairs - Seats, bunks, retaining systems - - Select page...
Technical modifications - Airbag and belt tensioner

94 - Body Noises

Maintenance Jobs - 1986 through 1993

6190 - Removing and installing engine compartment lower panel
9490 - Removing and installing lower noise encapsulation panels

Maintenance Jobs - 1994 through 1995

6190 - Removing and installing engine compartment lower panel
9490 - Removing and installing lower noise encapsulation panels

Body Noises

94-100 - Body noises - General

Programmed repairs - Body noises, noise insulation - - Select complaint...

97 - Preservation

Additional Information

Battery Cradle Inspection and Cleanup
Preservation

97-100 - General information concerning cavity preservation
97-150 - Cavity preservation following repair work
97-200 - Underfloor preservation
97-300 - Engine compartment wash and engine compartment preservation
97-400 - Sealing seams following repairs
97-500 - Permanent underfloor protection
97-750 - Sealing compounds for bodies
97-760 - Body glue
97-850 - Leaks at rear window and windshield
Programmed repairs - Body sealing, corrosion protection = = Select complaint...

Technical Modifications M103

COMB1 - Technical Modifications M103 Combustion I KE Injection
COMB3 - Technical Modifications M103 Combustion III KE Injection
COMB4 - Technical Modifications M103 Combustion IV KE Injection
Or use the following for easier navigation:
07.3 - Mechanical/Electronic gasoline injection system (KE injection)
07.3 - Mechanical/Electronic gasoline injection system (KE injection)
09 - Air Cleaner
14 - Intake manifold, exhaust, emissions control system
15 - Electrical system engine (ignition system)
30 - Accelerator control
47 - Fuel system

Program Repairs M103

COMB1 - Programed Repairs M103 Combustion I KE Injection
COMB4 - Programed Repairs M103 Combustion IV KE Injection
MECH1 - Programed Repairs M103 Mechanicals I
MECH3 - Programed Repairs M103 Mechanicals III
Or use the following for easier navigation:
01 - General engine operation
01 - Oil leaks
14 - Emissions control system, intake manifold, exhaust manifold
15 - Electrical system engine (ignition system)
18 - Oil consumption
18 - Oil level
20 - Coolant
30 - Accelerator control
47 - Fuel system
49 - Exhaust system

Modification Notes M103

COMB1 - Combustion I KE Injection
COMB2 - Combustion II KE Injection
COMB3 - Combustion III KE Injection

Misc Reference Articles

Table of Contents

240D Conversion
A/C Problems
A/C Troubleshooting
Aux Fan R&I
Battery Cradle Inspection
Blower Motor R&I
Brake Bleeder
Brake Caliper Rebuild
CIS Systems, T&A
Cooling System Diagnostics
Cruise Control Amp Repair
Cruise Control Troubleshooting
Dash Vent Light Bulbs
Door Panel Removal
Fuel Tank Sender R&I
Glow Plug Tests, Model W123
MonoWiper R&I
Multimeter 101
Paint Chip Repair
Parts List - '86-92 E-Class
Power Steering Fluid
Shock Absorbers
Starter Motor and Solenoid
Timing Chain Check
Trailing Arm Bushing R&I
Travel Kit
Vacuum Line Filters
Central Locking, Model W123
Water Pump R&I
Wheel Bearing Info

 

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