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Hello all!
New to the forum, I recently purchased a 1995 E420 black on black with ASR.
Car rides like a dream! recent throttle body and wiring harness replacement before i bought it... but the ASR light comes on randomly while driving from time to time. There has never been a loss of power or gas pedal function. so i dont worry about it.
am i looking at a wheel speed sensor problem or a brake light switch problem? My brake pedal does groan when being depressed/released, but brakes work completely fine.
If you want to solve the problem correctly without throwing parts at the car you will use a pulse counter and diagnose socket 6 which is the ASR socket and count the pulses(there are a 11 possible for 11 different fault points) three of them are wheel speed sensor faults the other are the other.
However to answer your question---yes it could be a wheel sensor,brake light switch, the ASR hydraulic unit and or control module! Choose wisely!!
Hi Notorq, just check also the battery. It took a week for mine to completely die with many side effects: warning lamps in dashboard lighting erratically!
I have tried to recharge the battery a couple of times but the car alternator (although working well) was not sufficient to recharge the faulty battery. And this battery, a supermarket brand... cheap, but I understand why, was only 1 year 1/2 old!!!
If it is not the battery, the sensor is a good possibility as well as any related relays.
Good luck.
01-12-2015, 09:03 AM
