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      08-26-2011, 09:18 AM   #14
wankel boy
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Drives: 2007 335i
Join Date: Jan 2011
Location: Southern California

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Update- This is the answer. change front sensor too.

Update: Hi everyone. cutting and pasting the answer to my (and it seems several others') conundrum with the rear brake light warning indicator:
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I've seen a handful of people with this same problem so I hope they find this post.

The dealership fixed this. At the time of the problem my front brakes had eaten well into the front brake wear sensor. So for some reason I could not reset the rear brakes which were new with a new sensor.

After about an hour of fiddling around, they plugged a new wear sensor into the front brakes location (electrically only, I assume)

Then they were able to reset the rear brake maintenance warning.

After than I am assuming they removed the temporary front sensor from the wiring (because how could you install it when it's thicker than the pads?)


They seemed annoyed, writing "This took an hour" on the invoice statement. At first I felt bad but now I feel that it's their own problem that resetting the rear warning is impossible without a fresh front wear sensor.
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