I recently replaced my wheel bearing on my 98 S420. Ever since my asr/bas light comes on.I now have a problem with my car hesitating to move sometimes and unexpected braking at slow speed or turns

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Asked by Sep 05, 2013 at 11:31 AM about the 1998 Mercedes-Benz S-Class S 420

Question type: Maintenance & Repair

Braking never happens at high speed

2 Answers

228,595

Probably because you disruped the wheel sensor on the side that you replaced the wheel bearing. It will illuminate the light when faulty. The car will now not activate the ABS in an emergency, and also (as your experiencing it now), activate the ABS when it shouldn't.

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So do I replace the wheel sensors? Does this sensor send a signal to my throttle body. I have been also told it could be my throttle body malfunctioning but it only started happening after the wheel bearing replacement

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