Hello. I drive a 2006 MB E350 base model. I have had the car for almost 2 years now. In the past 3 months, the SBC/ABS on the car has failed several times. The dashboard goes red and braking power is severely reduced, ESP warning etc. come on.

I have a dedicated MB mechanic and after the last incident, the car has been with him for almost 3 weeks now.

He took it to one of the best diagnostic centers in town and after checking, we were told that the 'body' and 'leg' sensors, and that would be the ABS sensors were bad. We had the 4 of them changed. I did not think that this was the issue and so I asked him to do a careful check. 

Eventually, they found that the 'brain box' for the ABS was bad and both the brain box and the SBC were changed. Worked fine for the few days of testing. Took on a long distance drive and came back, and on the way back, the a brake warning came up and said to return the workshop.  He checked and one of the sensors needed to be replaced and he did. He then took the car to clear the codes and he felt it was okay.

On his way to return the car to me, the SBC/ABS failed again. 

I need help, counsel, and advice about what to do or how to proceed with resolving this issue, short of just selling the car for scrap.

I look forward to your responses.

Thank you.

 

Doc

Comments

Profile picture for user BMWadict

Sorry to hear about the issues you are having with ABS/SBC brakes. It is important to point out that 4 wheel ABS don't fail at the same time. If you loose connection to all the sensor that points to a ABS module issue.

Now I understand you have had multiple issues with the brakes, but do you know the fault codes each time?

Also what scanner does your mechanic use? I would strongly recommended that you find a specilized mechanic that has Star Diagnostic scanner. (If your mechanic does not have that.)

I would love to help further, but need to know what codes are pressent in the SBC/ABS module.

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