Question about 2003 Mercedes-Benz S-Class

1 Answer

EPC FAULT ON A MERCEDES S320 CD1 (2003)

I had a serious lack of power on kickdown then the computer displayed EPC (electroic power control) 'return to workshop'.
when i switched the engine off then back on again the computer had cleared but when i went over 2000 revs it went back into epc mode again.
does anybody know what can cause this or how i can fix it.????????????????
regards
gary.

Posted by on

  • pbulli1948 Jan 24, 2009

    after driving for about 5 minutes the kick down stops working and the engine will not go over 3000rpm even in neutral. If I stop and restart the engine everything is fine for another 5 minutes. Mercedes have changed the Air Mass system, cat converters and fuel filters but problem is still there.

    (2002 S320 CDi)

  • Anonymous Apr 14, 2009

    this is ********


×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

There can be an array of problems that can illuminate the EPC lamp on S-Class 220. A few of the most common faults with these are : HFM sensor, turbo or blocked cats. the best way to check the cats are the remove them and tap them on the ground and if dust falls out then the cats are damaged, if OK, you may have to plug into a diagnostic machine.
let me know how you get on,

bryce

Posted on May 25, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What does the epc ligh mean on he dashboard


Electronic power control. This light comes on to inform you the computer has detected a problem with one or more of the sensors/circuits it monitors. You will need to have the codes scanned to determine where the fault may be and diagnose from there

Feb 07, 2016 | 2002 Mercedes-Benz M-Class

1 Answer

In dash board EPC light on


Hi there, I'm guessing your vehicle is a VW or Skoda, Seat etc. The EPC light displays when there is an Electronic Power Control fault, these can be caused by many different component faults. It really needs to be plugged in to a diagnostic reading tool to identify the fault code that will have flagged up.

Feb 09, 2013 | Cars & Trucks

1 Answer

Mercedes 320 sport auto tranmision kickdown not responding


There can be an array of problems that can illuminate the EPC lamp on S-Class 220. A few of the most common faults with these are : HFM sensor, turbo or blocked cats. the best way to check the cats are the remove them and tap them on the ground and if dust falls out then the cats are damaged, if OK, you may have to plug into a diagnostic machine.

Sep 06, 2012 | Cars & Trucks

1 Answer

I have a 2006 Polo Classic & noticed my EPC light


Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

Aug 30, 2012 | Cars & Trucks

1 Answer

Gears working if used manually but will not kickdown automatically


Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

Aug 09, 2012 | 2002 Mercedes-Benz C200

1 Answer

Why can't I manually downshift my 1999 Mercedes S320


Hello
The engine and transmission in this cars drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

Jul 19, 2012 | 1999 Mercedes-Benz S-Class

1 Answer

Mercedes Benz S320 CDI faulty EPC display year 2004


Hi there:EPC - Electronic Power Control

If its like some other models is doesnt have a traditional accelerator, its drive by wire. Possibly pumping the pedal as you try to start is causing that. First off check for air getting into the fuel line.

Hope this helps.

Jun 20, 2012 | Cars & Trucks

1 Answer

The power seats, power rear shade and power mirrors are not working in my 1997 Mercedes S320


Just double check that you havent blown a fuse/or fuses, it may be that simple!

May 26, 2009 | 2002 Mercedes-Benz S-Class

2 Answers

Loss of power


I have the same problem on a s320 cdi, gearbox goes into limp mode and wont rev above or kickdown, at the 1st chance i get to stop i put into park or neutral gear turn off the engine and re-start and then everthing is fine, I read that if you put a new battery on it may solve the problem, it's something to do with the voltage dropping below 10.4 volts. Then it sends a message to e.c.u. that puts your gearbox into limp mode. Hope this will work for you. MERKY

Apr 25, 2009 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

The power seats, power rear shade and power mirrors are not working in my 1997 Mercedes S320


i have same problem on 1997 s420, don't know why it is happening. but you can replace cigar lighter fuse then replace seat/mirrors/steering wheel fuse and all is well. thnx

Apr 14, 2009 | 1995 Mercedes-Benz S-Class

Not finding what you are looking for?
2003 Mercedes-Benz S-Class Logo

3,045 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercedes-Benz Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

61168 Answers

Michael Contreras
Michael Contreras

Level 2 Expert

164 Answers

Are you a Mercedes-Benz Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...