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      05-09-2012, 03:53 PM   #6
UA
///M User
 
Drives: 2011.5 M3
Join Date: Jan 2011
Location: Boston, MA

Posts: 204
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Yup it's normal, mine does the same thing. There is a TSB for this issue and BMW is aware of it. If the noise bothers you or doesn't go away go to the dealer and change the differential fluid to the new fluid.
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