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      08-06-2012, 07:02 AM   #10
erm324
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Drives: F10 M5
Join Date: Oct 2009
Location: NYC

iTrader: (1)

^ The sound in that video doesn't sound normal whatsoever.

OP, I am very convinced the sound is related to something within my motor. If your car is stock (or close enough to it) just bring it in, let BMW deal with the headache of diagnosing/fixing it.