Thread: Diff noise?
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      06-25-2008, 03:35 PM   #25
GregW / Oregon
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Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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Noise banished!?

Quote:
Originally Posted by GregW / Oregon View Post
I'm getting a low noise on tight low speed turns. Might be the diff. I noticed on the 1,200 service there was not additive listed for the diff oil. I thought all the MLocks got it. The parts guy said only if they're "noisy".

The noise is hard to describe, but like a low rubbing sound, on both left and right hard turns. You can really hear it in a parking garage with the window down.
Update: Dealer replaced the diff fluid today with the one in quixs1lver's post. From the invoice:

"0053267 repl diff oil with special oil
5029 WBMW
3 83-22-2-282-583 final-drive gear oil (N/C)

Verified customer complaint per SIB 33 01 02. Replaced diff fluid and performed break in treatment. See attached bulletin. Break in procedure may take up to 600 miles."

I drove around my club's parking garage with tight corners and so far no noise.

6/30 update - noise is definitely gone
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Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350

Last edited by GregW / Oregon; 06-30-2008 at 06:34 PM.