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magicknife
Tue, Jun-26-2007, 02:31:07 AM
Any one know what oils is used to decrease the differential grind noise?

M333
Tue, Jun-26-2007, 10:25:30 AM
i wish i knew the answer!

i hate that soud!

snort06coupe
Tue, Jun-26-2007, 11:14:46 AM
I think it's a BMW diff oil with "friction modifier" someone here can probably provide the link. Also maybe redline or royal purple make a suitable diff oil that will clear it up a bit.

Cheers,
Snort

petercory
Wed, Jun-27-2007, 09:46:39 PM
Diff Oil Part # for your problem is 83 22 2 282 583; Refer to BMW Service Bulleton # SIB33 01 02 which substantiates this and gives the procedure for eliminating the noise that you're experiencing (unless ther diff is too far gone).

Fury
Sun, Jul-08-2007, 07:19:30 AM
The oil cost about $75. It's a easy DIY.