Thread: Diff noise?
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      07-30-2008, 09:33 PM   #30
GregW / Oregon

Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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MLock & fluid type

Originally Posted by Radiation Joe View Post
If you can live with the noise, I would leave it alone. Your diff is working the way it is supposed to. They can add more LS friction modifier, but then you'd have less of the effect the the LSD is there for, mainly less torque lock up.

If your diff doesn't make any noise under any circumstances, then you have no way of knowing (other than taking it through an auto-x) if the diff is doing it's job. I'd take that little groaning noise as a sign your car is healthy.
What you say may be true, but do you have any facts to support that? I don't think the modifiers just make the fluid slipperier, but I could be wrong.

Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350