How to turn off "EC" button and A/C PM for 99' E320 - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 06-06-2010, 05:09 PM
BenzWorld Junior Member
 
Date registered: Mar 2010
Vehicle: 99 E320
Location: San Antonio, TX
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Question How to turn off "EC" button and A/C PM for 99' E320

"EC" light is on since Fri. nite while was driving on the road. No A/C. the sensor code and error code are read as:
1/102
2/93
3/100
4/100
5/94
6/186
7/07
8/93

9/27
10/5.7
11/1.6
12/4.1
20/3.2
21/42
22/00
23/32
24/13.3
40/164
41/32
42/104
43/136

Error code:
Eb1 234
Eb1 459
Eb1 241
E FF
E --

Flaps:
1-15 All LO

Please Help, what should i do now? Thanks!

Last edited by VME320; 06-06-2010 at 09:24 PM.
VME320 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 06-06-2010, 05:19 PM
BenzWorld Elite
 
Date registered: Jul 2006
Vehicle: 1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
Location: NW Arkansas, La Jolla CA, Hong Kong
Posts: 6,202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
If the codes were read running at least after a few minutes, the value of #7 should be about 15 - so what you have posted you are about 50% of proper refridgerant pressure.

Having a reliable general shop with correct recharge equipment handle that - they evacuate what you have - hold at a vacuum for leak detection - then if no major leak detected they refill with correct amount of refridgerant - should be around $80
fabbrisd1 is offline  
#3 (permalink) Old 06-06-2010, 08:39 PM
BenzWorld Junior Member
 
Date registered: Mar 2010
Vehicle: 99 E320
Location: San Antonio, TX
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Quote:
Originally Posted by fabbrisd1 View Post
If the codes were read running at least after a few minutes, the value of #7 should be about 15 - so what you have posted you are about 50% of proper refridgerant pressure.

Having a reliable general shop with correct recharge equipment handle that - they evacuate what you have - hold at a vacuum for leak detection - then if no major leak detected they refill with correct amount of refridgerant - should be around $80
Thank you Fabbrisd1 for the direction. I will do that check soon. My first question is does refrigerant pressure low causes "EC" light on? or it is totally different issue? Right now, since it is always on, no matter whether I turn on "Auto" or switch to fan blows feet and face....A/C won't work at all.

The second question is if they detect leak, what should i do next? How much we are looking at to fix that major or minor leak repair work? Costly?

A little background info abt the car: It has abt 70k now, had blower regulator, mounting plat and motor replaced when it was at 66k, abt two yrs ago. I am the third owner, just have it at the beginning of this year. Can't drive without A/C at TX...
VME320 is offline  
#4 (permalink) Old 06-06-2010, 09:08 PM
BenzWorld Elite
 
eric242340's Avatar
 
Date registered: May 2007
Vehicle: S320 (W220) and Zotye 1.3/Rolls Royce on back order (LOL)
Location: Jiangsu province China
Posts: 48,366
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quoted: 30 Post(s)
Low pressure puts the EC light on to warn you, after the repair and refill the light will go out.

The cost of repairs depends entirely on the location of the leak.

ERIC.

___________________________________________
"I am enclosing two tickets to the first night of my new play; bring a friend, if you have one."
- George Bernard Shaw to Winston Churchill.

"Cannot possibly attend first night, will attend second ... if there is one."
- Winston Churchill, in response.
eric242340 is offline  
#5 (permalink) Old 06-06-2010, 10:00 PM
BenzWorld Junior Member
 
Date registered: Mar 2010
Vehicle: 99 E320
Location: San Antonio, TX
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
I cross my fingers. More info: Before "EC" on (this past Fri. nite), I can still turn on and off A/C, but i can hear hissing noise very frequently on that afternoon. I also realized in early this March, when outdoor temp. ard 75 degrees, driver side A/C blows warmer air than passenger side, although passenger side A/C is not cold as it should be, at full bars speed. I suspected that either duo valve is not cleaned or the vent inside dashboard (somewhere) on driver side is not opened....Now it sound like i might face much serious A/C problems than i thought.... Would anyone interpret the error codes mean? Appreciate!
VME320 is offline  
#6 (permalink) Old 06-07-2010, 04:25 AM
BenzWorld Senior Member
 
Date registered: Mar 2010
Vehicle: 1999 E300 Turbodiesel
Location: Florida
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Good morning,

The definition of the error codes are as follows:

1234= sun sensor issue

1459= Serial Interface connection(K2) to instrument cluster

1241= refrigerant level

The first and third make sense, the second I have no experience.

Previous advice to leak test is a good one---no sense to just fill the system only to have the same problem crop up later.

Some folks just pu pu the sun sensor issue, however I don't know the function of the sun sensor within the climate control process and/or its effects on the system if not working correctly. Good luck
jhby@qis.net is offline  
#7 (permalink) Old 06-07-2010, 04:31 AM
BenzWorld Elite
 
eric242340's Avatar
 
Date registered: May 2007
Vehicle: S320 (W220) and Zotye 1.3/Rolls Royce on back order (LOL)
Location: Jiangsu province China
Posts: 48,366
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quoted: 30 Post(s)
Quote:
Originally Posted by jhby@qis.net View Post
Good morning,

The definition of the error codes are as follows:

1234= sun sensor issue

1459= Serial Interface connection(K2) to instrument cluster

1241= refrigerant level

The first and third make sense, the second I have no experience.

Previous advice to leak test is a good one---no sense to just fill the system only to have the same problem crop up later.

Some folks just pu pu the sun sensor issue, however I don't know the function of the sun sensor within the climate control process and/or its effects on the system if not working correctly. Good luck
The sun sensor code is a boggy as the sun sensor detects the strength of the sun rays and helps the AC to maintain in-car temperature at the correct level but when the AC is not working then the computer will throw a sun sensor code. Simply put you have to understand how the AC system works to know which codes are not important.

The system must be up and running to decide if there really is a sun sensor problem first.

ERIC.

___________________________________________
"I am enclosing two tickets to the first night of my new play; bring a friend, if you have one."
- George Bernard Shaw to Winston Churchill.

"Cannot possibly attend first night, will attend second ... if there is one."
- Winston Churchill, in response.
eric242340 is offline  
#8 (permalink) Old 06-07-2010, 04:48 AM
BenzWorld Senior Member
 
Date registered: Mar 2010
Vehicle: 1999 E300 Turbodiesel
Location: Florida
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by eric242340 View Post
The sun sensor code is a boggy as the sun sensor detects the strength of the sun rays and helps the AC to maintain in-car temperature at the correct level but when the AC is not working then the computer will throw a sun sensor code. Simply put you have to understand how the AC system works to know which codes are not important.

The system must be up and running to decide if there really is a sun sensor problem first.
Thats sound advice---------------How about jumping in and help me with my climate control outside air temp sensor that I just posted???
jhby@qis.net is offline  
#9 (permalink) Old 06-10-2010, 09:45 PM
BenzWorld Junior Member
 
Date registered: Jan 2010
Vehicle: 1997 E320
Location: Brooklyn
Posts: 18
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My EC button light stays on all the time also , How to turn it off to add refrigirant

First time
1 E (Inside Temp)
2 17 (Outside Temp)
3 41 (Left Heater Core Temp)
4 42 (Right Heater Core Temp)
5 18 (Evaporator Temp)
6 68 (Engine Coolant Temp)
7 01 (Refrigerant Pressure)
8 17 (Refrigerant Temp)

9- 05
10 0.8 Blower Control Voltage
11 3.9 OR 4.0 Emission Sensor
12 4.2 Sun Sensor
20 0.0 Control Current for Auxiliary Fan
21 126 & 07 Engine Speed
22 00 Vehicle Speed
23 00 Terminal 58d
24 13.1 Battery Voltage
40 71 Software Status
41 36 Hardware Status
42 64
43 136
E B1226 - In-car temperature sensor (B10/4)
E B1231 - ECT sensor (B11/4)
E B1234 - Sun sensor (B32)
E B1235 - Emissions sensor (B31)
E B1416 - Coolant circulation pump (M13)
E B1419 - Electromagnetic clutch (A9k1)
E B1241 B1241 - Refrigerant fill
E FF

SECOND TIME
1 E (Inside Temp)
2 14 (Outside Temp)
3 42 (Left Heater Core Temp)
4 44 (Right Heater Core Temp)
5 17 (Evaporator Temp)
6 93 (Engine Coolant Temp)
7 02 (Refrigerant Pressure)
8 22 (Refrigerant Temp)

9- 05
10 1.4 Blower Control Voltage
11 4.0 Emission Sensor
12 3.7 Sun Sensor
20 0.0 Control Current for Auxiliary Fan
21 FLASHING 126 & 07 Engine Speed
22 00 Vehicle Speed
23 00 Terminal 58d
24 12.9 Battery Voltage
40 71 Software Status
41 36 Hardware Status
42 64
43 136
E B1226 - In-car temperature sensor (B10/4)
E B1231 - ECT sensor (B11/4)
E B1234 - Sun sensor (B32)
E B1235 - Emissions sensor (B31)
E B1416 - Coolant circulation pump (M13)
E B1419 - Electromagnetic clutch (A9k1)
E B1241 B1241 - Refrigerant fill
E FF
Happiegolucky is offline  
#10 (permalink) Old 06-10-2010, 09:49 PM
BenzWorld Elite
 
eric242340's Avatar
 
Date registered: May 2007
Vehicle: S320 (W220) and Zotye 1.3/Rolls Royce on back order (LOL)
Location: Jiangsu province China
Posts: 48,366
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quoted: 30 Post(s)
Quote:
Originally Posted by Happiegolucky View Post
First time
1 E (Inside Temp)
2 17 (Outside Temp)
3 41 (Left Heater Core Temp)
4 42 (Right Heater Core Temp)
5 18 (Evaporator Temp)
6 68 (Engine Coolant Temp)
7 01 (Refrigerant Pressure)
8 17 (Refrigerant Temp)

9- 05
10 0.8 Blower Control Voltage
11 3.9 OR 4.0 Emission Sensor
12 4.2 Sun Sensor
20 0.0 Control Current for Auxiliary Fan
21 126 & 07 Engine Speed
22 00 Vehicle Speed
23 00 Terminal 58d
24 13.1 Battery Voltage
40 71 Software Status
41 36 Hardware Status
42 64
43 136
E B1226 - In-car temperature sensor (B10/4)
E B1231 - ECT sensor (B11/4)
E B1234 - Sun sensor (B32)
E B1235 - Emissions sensor (B31)
E B1416 - Coolant circulation pump (M13)
E B1419 - Electromagnetic clutch (A9k1)
E B1241 B1241 - Refrigerant fill
E FF

SECOND TIME
1 E (Inside Temp)
2 14 (Outside Temp)
3 42 (Left Heater Core Temp)
4 44 (Right Heater Core Temp)
5 17 (Evaporator Temp)
6 93 (Engine Coolant Temp)
7 02 (Refrigerant Pressure)
8 22 (Refrigerant Temp)

9- 05
10 1.4 Blower Control Voltage
11 4.0 Emission Sensor
12 3.7 Sun Sensor
20 0.0 Control Current for Auxiliary Fan
21 FLASHING 126 & 07 Engine Speed
22 00 Vehicle Speed
23 00 Terminal 58d
24 12.9 Battery Voltage
40 71 Software Status
41 36 Hardware Status
42 64
43 136
E B1226 - In-car temperature sensor (B10/4)
E B1231 - ECT sensor (B11/4)
E B1234 - Sun sensor (B32)
E B1235 - Emissions sensor (B31)
E B1416 - Coolant circulation pump (M13)
E B1419 - Electromagnetic clutch (A9k1)
E B1241 B1241 - Refrigerant fill
E FF
Look at reading 7 on your list, it should be between 10 and 15 bar. So you need to have the system vacuum tested and if no leak is found then refill the system.

ERIC.

___________________________________________
"I am enclosing two tickets to the first night of my new play; bring a friend, if you have one."
- George Bernard Shaw to Winston Churchill.

"Cannot possibly attend first night, will attend second ... if there is one."
- Winston Churchill, in response.
eric242340 is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W210 E-Class


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Topic Author Forum Replies Last Post
Pressing "ESP turn off" button nothing happens. Jayr0071 W163 M-Class 3 12-22-2009 04:59 AM
2001 E320: "Stick" with "MB WorkShop Only" What is this? DanielH General Mercedes-Benz 4 04-21-2007 09:12 PM
Malfunctioning ""REST" Button on A/C Control Panel/Batt Drain Mr. Farknocker W140 S-Class 10 04-21-2004 10:07 PM
2003 E320 Transmission Question ( "C" or "S") setting jmorgis W211 E-Class 3 11-06-2003 01:05 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome