Tightening torques (Nm)*
Engine tightening torques
Tightening torques on the front undercarriage
Brake tightening torques
Tightening torques on the rear undercarriage
Tightening torques for gearbox
*formula for conversion :
Engine tightening torques
| ML320 | ML55 | Comments | |
| Valve cover (kit) | 8 Nm | 9 Nm | |
| Camshaft bearing: | |||
| M 7 x 84 | 10 Nm + 90 ° | 10 Nm + 90 ° | |
| M 7x45 | 15 Nm | 15 Nm | |
| Camshaft drive gear | |||
| Stage 01 | 50 Nm | 50 Nm | |
| Stage 02 | 90 ° | 90 ° | |
| Chain tensioner | 80 Nm | 80 Nm | |
| Timing Cover | 20 Nm | ||
| Guide Roller - Belt | 20 Nm | ||
| Length of new cylinder head bolts | 141.5 mm | 141.5 mm | |
| Maximum length of cylinder head bolts | 144.5 mm | 144.5 mm | |
| Cylinder head retaining bolts | Observe the length of the bolts. | ||
| Screw (s) 1 - 8, Step 01 | 10 Nm | 10 Nm | *ML55 Screw (s) 1 - 10, Step 01 |
| Screw (s) 1 - 8, Stage 02 | 30 Nm | 30 Nm | *ML55 Screw (s) 1 - 10, Stage 02 |
| Screw (s) 1 - 8, Stage 03 | 90 ° | 90 ° | *ML55 Screw (s) 1 - 10, Stage 03 |
| Screw (s) 1 - 8, Step 04 | 90 ° | 90 ° | *ML55 Screw (s) 1 - 10, Step 04 |
| Screw (s) 9-12, Step 05 | 20 Nm | 20 Nm | *ML55 Screw (s) 11 - 14, Step 05 |
| Intake manifold | 20 Nm | 20 Nm | |
| Exhaust manifold | 16 Nm | 16 Nm | |
| Spark plug | 28 Nm | 28 Nm | |
| Knock sensor | 20 Nm | 20 Nm | |
| Belt pulley - cooling pump | 9 Nm | ||
| Coolant Pump | |||
| M6 | 10 Nm | ||
| M8 | 25 Nm | ||
| M6, Thread not pre-cut | 14 Nm | ||
| M8, Thread not pre-cut | 35 Nm | ||
| Crankshaft center screw | |||
| Stage 01 | 200 Nm | 200 Nm | |
| Stage 02 | 95 ° | 95 ° | |
| Flywheel | |||
| Stage 01 | 45 Nm | 45 Nm | |
| Stage 02 | 90 ° | 90 ° | |
| Torque converter | |||
| M8 | 42 Nm | ||
| Angle Connection, Stage 01 | 4 Nm | ||
| Angled Screw Connection, Stage 02 | 30 Nm + 90 ° | ||
| Oil drain screw (s) | 30 Nm | 30 Nm | |
| Oil sump | |||
| M6, Upper oil pan | 9 Nm | 9 Nm | |
| M8, Upper oil pan | 20 Nm | 20 Nm | |
| Lower part of the oil pan | 14 Nm | 14 Nm | |
| Oil filter housing | 25 Nm | 25 Nm | |
| Connecting rod bearing | |||
| Stage 01 | 5 Nm | 5 Nm | |
| Stage 02 | 25 Nm | 25 Nm | |
| Stage 03 | 90 ° | 90 ° | |
| Main bearing | |||
| M8 | 20 Nm + 90 ° | ||
| M8, screw connection on the side | 30 Nm | ||
| M10 | 5 Nm + 30 Nm + 90 ° | ||
| Motor holder - to engine support | 55 Nm | ||
| Motor bearing | |||
| to the supporting beam of the bridge | 35 Nm | ||
| to the traverse, behind | 30 Nm | ||
| to the gearbox | 40 Nm | ||
| Oxygen sensor | 55 Nm | 55 Nm | |
| Generator | 42 Nm | ||
| Starter | 42 Nm | ||
| Air conditioning compressor - on bracket | 20 Nm | ||
| Holder - air conditioning compressor to the crankcase | 20 Nm | ||
| Air conditioner compressor pressure line | 20 Nm | ||
| Power steering pump to the bracket | 25 Nm | ||
| Bracket for power steering pump to the crankcase | 25 Nm | ||
| Hydraulic line (s) to the power steering pump | |||
| Reverse drain | 2 Nm | ||
| M16 x1.5 | 45 Nm | ||
| Belt pulley power steering pump | 25 Nm |
Tightening torques on the front undercarriage
| Front axle stabilizer bearing support | Notes | |
| to the wishbone | 68 Nm | |
| support bracket | 50 Nm | |
| Front axle upper wishbone | ||
| to the frame | 120 Nm | |
| to the steering knuckle | 50 Nm | |
| Front axle lower wishbone | ||
| in front, on the bearing beam of the bridge | 135 Nm | |
| behind, on the supporting beam of the bridge | 30 Nm | |
| Wheel mount | 150 Nm | (110 ft lbs) |
| Front wheel hub / bearing | 490 Nm | |
| Tie rod head to steering knuckle | 55 Nm | |
| Tie rod end to tie rod | 50 Nm | |
| Shock absorber | ||
| to the wishbone | 130 Nm | |
| to the body (to frame) | 30 Nm | |
| Front axle independent suspension joint on steering knuckle | 300 Nm |
Brake tightening torques
| Front disc brake caliper | Notes | |
| to the steering knuckle / caliper mounting bolts | 180 Nm | *use 21mm socket (for ML55) |
| Guide | 30 Nm | |
| Rear disc brake caliper | ||
| Caliper Mounting Bolts - with rigid disc brake caliper, fixed | 115 Nm | |
| rotor / brake disc hex screw | 23 Nm | |
| Air valve / Bleeder Screw | 9 Nm | *7-10 Nm - use 8mm std or box wrench |
| Sensor - wheel speed | 8 Nm | |
| Brake line | 18 Nm | *usee 11mm flange wrench only |
| Brake hose | 18 Nm | *use 13mm open wrench |
| Brake hose, Banjo Bolt? | 33 Nm | *use 15mm socket |
| Brake pad wear sensor | 9 Nm |
Tightening torques on the rear undercarriage
| Wheel mount | 150 Nm (110 ft-lbs) | 150 Nm (110 ft-lbs) | Notes |
| Rear wheel hub / bearing | 490 Nm | 490 Nm | |
Tightening torques for gearbox
| Drive shaft | Notes | |
| rear, center nut | 490 Nm | |
| front, center nut | 490 Nm | |
| Gearbox oil drain plug | 20 Nm | |
| Torque converter oil drain plug | ||
| M3 | 10 Nm | |
| M10 | 15 Nm | |
| Oil drain plug, transfer case | 30 Nm | |
| Transmission oil pan | 8 Nm |
*formula for conversion :
ft - lb = Nm x 0.73756
*more to be added soon... list to be updated (entering all values manually!!!!)
