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Old 02-09-2010, 02:36 PM   #1
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Join Date: Jul 2008
Location: Wadsworth, Ohio
Posts: 8,751
My Ride: BMW
:: ECS Tuning :: Geunine BMW Motorsport Differential Fluids ~ AKA FM Booster

The ///M limited slip differential is sometimes known for a grinding noise during low speed cornering.

It is caused when the rear wheel speed differential varies during tight cornering, a slip stick effect is created on the lining and steel discs incorporated in the differential locking clutch, causing the grinding noise.

This is the new fluid described by BMW to cure this problem (TSB# 33 01 02) in the following models.

**Includes friction modifiers to reduce noise during low speed cornering


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Last edited by ECSTuning; 02-10-2010 at 07:33 AM.
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