ABS doesn't work. I did test it...:bomb2:

Finally broke down and took it to the dealer. The previous diagnosis was to replace the brake booster and I just couldn't do without another opinion. Good thing too. It also had started showing "engine fan" message on the display too. That was also related to the short at the connection described below.

Dealer diagnosis: Checked power at PIN 48 on C1000 control module found it to be 5.8 with ignition off and 1.7 with the vehicle started - should be above 12 volts. Found volt drop on circuit 30 - checked x12/3 power distribution connector underhood and found that terminals were loose and slightly dirty - removed all terminals and cleaned with emery cloth - retorqued bolt and checked and volts were 12.34. .75 hours diagnosis and .3 hours to clean contacts. $122.00 total bill.

No more lights on the display for now. But, damn the corrosion. It's a big factor in a car now 8 years old and with 140k miles.

And, my take is that this isn't just a MB issue, most any car is going to have these issues after a few years. - As complex as the wiring is, it's inevitable.

Ever get this one fixed?
 

Were you ever able to get this problem corrected?

He did. Read the post right above yours.

2000 C230 K With Same Issue
 

I am having the same issue. Just this morning just leaving the driveway the trans went into limp mode. Shut the car off and restart it again and the lights went out.All worked well for about 10 miles and the lights came back on. But the trans was working fine. This may go on for a few days to a few miles until the BAS / ABS lights come back on. I have checked the battery, alternator, brake light switch. Grounds are o.k. Any sugestions before I take a hit from the dealer?

Thanks
Mike V.

Did you change the brakelight switch? Try to press the brakepedel and start, does the light come on as you release the pedal? Does your crsecontrol work?

BAS , ESP & ABS Lights
 

Jakob,
Yes I replaced the switch 2 weeks ago and the lights went away but just this past monday they are back and today they are here to stay. I have not tried to press the pedal before start. I will do that tomorow. The cruse control works fine with the lights on. I will let you know on the brake pedal before I start the car in the morning. Thanks for the feed back.

Mike