rogerschnabel

2003 SL 500 ABC system repaired but ABC light comes on intermittently going over bumps in the road sometimes a very small bump sets off the light sometimes a big bump does not set off the light James Motors in Lexington can't find the cause does anyone have any ideas as to what is causing the problem and what can be done to correct the situation

Nosmo SL55

My suggestion is to investigate the accumulators.

Check out this document.

http://mercedes-abc-drive-carefully....y-part-of.html

cadbob

accumulators I had same problem Replaced all 4 and found rear one was blown. All good now here.

Make sure you flush system after you have them replaced and if one or more are blown. The Blown ones once off you will be able to place pencil down into. Diaphragm is shot so now back pressure for fluid.

rogerschnabel

thanks for the post great info

rogerschnabel

Im sure the tech didn't know this info passed it on to the service writer who will get back to me after it is discussed with the tech