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      10-11-2021, 05:08 PM   #20
delta
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Drives: '21 F90 M5Comp; '14 F25 X3 35i
Join Date: Nov 2006
Location: Bellevue, WA

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Quote:
Originally Posted by ashmostro View Post
One more thought. It's possible an uneven adjustment of the parking brake between the two rear axles could lead to a literal differential torque upon shutdown, which could then be making the diff groan because it's not expecting any relative (and therefore, internal) motion.
I can see that. I have always sensed that the abruptness and completeness of the sound/shudder is the result of a release of some kind of "stored energy" somewhere in the rear differential/axles.

Appreciate your digging into the matter. Very interested to see what the dealer will say. And I will definitely share the results.
Appreciate 0