rehabmd54

I returned from a trip where I left the car for 4 days in the parking lot. The battery was dead. Got the car jump started but messages in the display indicated: BAS ESP ABS malfunction. The car brake light was constantly on and I couldn't get it out of park. Had to get the car flatbedded home. Was this all caused from a dead battery? are there relay glitches? Help me before I go to the dealer. They always want to replace something instead of taking the time to find out what really is wrong.

eugeneC55

Had similar situation with my C55 although my battery was never dead. Dealer couldn't figure out what the problem was (they never had this type of problem on C55 before). They consulted with other dealers and got a tip that something similar was happening on CLK55 and faulty wiring was the problem. It was claimed that electro-magnetic 'something' in the wires was causing the problem with one of the control modules. Again, that is what I remember so far, I can contact my dealer tommorow and get more specific info.
Good luck with your situation. Props to you for doing your research before going to dealer

zam2000

Look like your brake light switch might be malfunction, it triggers the lamp to stay on and drain the car battery. Stuck brake light switch would cause BAS/ESP/ABS warning like that.

Ask dealer to check it, it's only $10 part and 10 min to replace.

rehabmd54

Rehabmd54
The problem ended up being a fuse and a contol module that needed to replaced. The dealer told be I needed a new command center for 4800.00 used. I stuck with my instincts and disagreed. The voltage issue was the button on the drivers door handle which was stuck...spent 250 for the handle and 750 for trouble shooting labor
Incedently the dealer tells me I need new pads and rotors. they want 2500.00 for the job. I usually take my car to a private mechanic who has 25 years experience with MB. Is there anywhere I can get the parts or should I have the dealer take more of my childrens tuition money

GrepAwk

KYBenz quoted me about 6 months ago for pads (check with him for updated pricing)....

$224 front pads, $82 rears. didn't get rotor prices though.

GrepAwk

And when you get a battery disconnect, remember to resynchronize all the motors and steering angle sensor.

Steering.....Turn steering wheel from locked left to locked right. Helps reset the ESP and Pre-Safe computer

Windows.....all the way down and hold switch down for 5 seconds, all the way up and hold for 5 seconds.

Sunroof.....close all the way. push button up and hold for 5 seconds. I forget how to reset the "one-button push open" feature. I think it's similar.

Power steering wheel column motors.....all the way into the dashboard and hold, all the way out at you and hold, all the way up and hold, all the way down and hold.

I didn't have to resynch my seats and headrests, but they are suspect too.

merc79

Hey there, I'm having a similar issue recently, but no battery drain. My ABS light sometimes comes on and off. LIke if I turn off the car and turn it back on the ABS light goes away. Other times I get the BAS,ESP,SRS, and ABS all warnings show up. Could this be due to a faulty BRAke Light SWitch? Which Fuse and Control Module did you get replaced by the way?
Thanks.

merc79

In my case my brake lights do work,but does have a faulty Brake light switch still allow the brake lights to work? I'm getting the BAS.ESP,ABS light on.