Question about 2004 Mercedes-Benz SL-Class

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ABC visit workshop, but then says no malfunction 2004 SL500

What to do? First MBZ Santa Monica says ABC does not communicate properly and replace it for about $3,500; second MBZ South Bay says right rear shock defective and causing ABC warning light to go off. Then take it to my regular mechanic who says there is nothing wrong with the right rear shock...so confusing! Until I find a solution, is there a way to disconnect so ABC warning does not go off all the time? Help!!!

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 67 Answers

SOURCE: how do you cancel red battery warning light on SL350 2004

to answer you question directly: srew out the bulb. but that dos only hlep the short time, since your car will stop working soon.

i hop your question meant how to solve that issue what is causing this to light up.

Usualy this is a problem at or near the generator. The gen dos no longer produce enough electricity to run the car and the car is currently satisfying his needs from the battery, draining it.

the cause can be a defective gen, a devective regulation unit, a loose or broken cable or a bad contact. usually i would review the cables and check the gen and regulator with a voltmeter. usualy the cause pops up then.

Posted on May 29, 2009

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SOURCE: 2001 c240 battery/alternator - visit workshop light

This is normally a low voltage from the alternator condition. Hook a voltmeter to the battery and note the reading. Should be 11.6vdc to 12.2vdc. Start the car, after a minute or so it should be around 13 to 14 vdc., if not then the alternator may be bad

Posted on Jan 09, 2010

TDISLine
  • 1874 Answers

SOURCE: Mercedes CL 500 2001 model

ABC means "Active Body Control" system. You need to access the ABC ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored. Then you will be full informed about bad components, and you will be able to repair & replace bad pieces. Then you will be able to erase all DTC from ABC ECU memory and reset the ABC ECU. Therefore the ABC light will turn OFF, and the car will running fine.

Before you can check this:
Common areas are behind the front left tire in the wheel well and also there are 2 hoses that run under the car, around the front axle area, and also in front of the radiator there might be some lines. I have seen all of them blow out on occasion. The ABC pump itself goes bad too. Also there are valve blocks one for each axle and they go bad or get clogged up. Check the level with the larger of the 2 sticks in the reservoir there are 2 marks on it in german. The lower mark is with the car running, and the top mark is car off. There is a filter, its in the reservoir that you check the level in. It's the large screw off cap there is a filter on there. But changing and flushing is usually done with the Mercedes Benz computer so the car can dip and roll manuever they call rodeo that will actuate all 4 struts in a circular motion to bleed out the lines and stuts of debris and old oil. I wouldn't recommend doing it yourself cause the pump could run dry and you could also get air in the system. It's really hard to say what the problem is. The dealer might recommend flushing the whole system and putting on a new filter to start. But I have replaced many valve blocks and pumps too. You might have no choice but the dealer.
See one similar case only as an example:
Mercedes CL 500 2001 ABC fault, all started when the car was left for 1 month without being started the battery went flat, no problem prior to this event.
ABC white light "visit workshop" this has been appearing for sometime after the flat battery but would disappear.
Car holds level and height overnight.
The red ABC warning has started appearing this last few days the suspension gets bouncy and raise lower switch inoperative.

stored codes:
CAN bus N47-5 interfered
n15/3 CAN bus interfered
terminal 30 low stored voltage
critical fl car stored -0001 height
system pressure stored too low code 006
component B22/6 rr journey sensor malfunction
A67r1 potentiometer vertical position short or open
A67r2 potentiometer horizontal position short or open
B1000 module fault.

Posted on Feb 22, 2011

  • 14036 Answers

SOURCE: 2004 e320 just replaced the

MERCEDES BENZ DEALERSHIP HAS TO REPROGRAM THE ANTI LOCK BRAKE SYSTEM AND ELECTRONIC STABILITY CONTROL SYSTEM.IF YOU DISCONNECT BRAKE PAD WEAR SENSORS WHEN REPLACING BRAKE PADS. THE ABS BRAKES AND ESP SYSTEM HAS TO BE RESET TO TURN OFF ESP LIGHT.

Posted on Aug 14, 2011

  • 1 Answer

SOURCE: 2004 E270 CDI Battery light visit workshop

I had the same problem in me 2004 cdi e270. Check the voltage going to the battery when the car engine is on. Stedy charge of 12v should be going in to the battery, if the voltage is volitale say between 11v to 14v then it your Regulator (which is attached to the backend of the alternator). You need to change alternator and then unplug all the batteries over night and re plug them back again. The problem should go away.

Posted on Nov 25, 2011

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