Mercedes-Benz Forum banner

1994 E420 ASR and ABS Lights On

3K views 4 replies 3 participants last post by  Arnieosp 
#1 ·
Recently had the right front wheel bearing replaced and while driving home the ASR and ABS lights came on resulting in those systems not working. After stopping and restarting the lights went off and the systems worked. Also when braking there seems to be a "crunching" sound from the front.

The lights will stay off when I first start up and then "sometimes" come on and then seem to reset when the car is restarted. Whats up? The car has 320 000 km's on it.
 
#2 ·
Just a guess.... but maybe the mechanic got grease on the speed sensor, or chipped a tooth on the ring. Or maybe it's as simple as there being dtc's stored. Maybe he spun a wheel with the key on, w/o the sensor in it's home. If this is a 'cool' shop, he would scan your computer n/c. Sometimes weird stuff happens. Try clearing codes, and if the problem persists, and codes come back, you can most likely trust what 'hard' codes are coming back.

Like I said.... just a guess


Brian
 
#3 ·
Do you have the part number for the speed sensor?
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top