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Re: 745i ABS warning light
> They claim that they used all the parts that came off my car except for
> the housing. When they put the car on the hoist to test, they did a spin
> test on each front wheel independently. The light stayed off when the
> left wheel was spun (?) but the right wheel caused a fault.
Spinning the wheels independently in the air will cause the control
unit to register a fault if a working wheel is spun. If the light
stayed off when the left wheel was spun, that means that the left
front sensor is probably not working/has a broken wire/etc. The
right front is sending a signal, and is causing the computer to think
that the left front and rear sensors are not registering.
> They did not mess with the right wheel at all. Anyone have an idea
> what's up here? I am wondering if the left sensor is:
>
> A. DOA
> B. Now much cleaner than the right one causing an imbalance in
> the signals from each wheel, thereby cauing an error condition.
I'd guess a bad connection, broken wiring, or the sensor is broken.
Or maybe the sensor is too far away from the hub. Any of this could
have happened if they weren't careful when servicing the strut.
Hope this helps,
Ben