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      11-18-2016, 10:07 AM   #14
JonM
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Drives: E90 M3 Sedan
Join Date: Sep 2008
Location: Seattle, WA

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Quote:
Originally Posted by Terp335 View Post
I wonder how many of us have gone through the leaky rear diff issue. Seems to be more common than I would have thought.
I am not sure they would have even noticed the wetness on ours. It was very minor in our case (less than yours) and I had to point it out to them because I had the car on jacks and saw it. Most owner's don't do that.

The root cause of the differential leak was the seals were put in slightly crooked; workmanship, not a design issue. They are a rubber seal and a radial spring. I would think it is quite common.
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