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      01-02-2012, 09:58 PM   #6
liborio's Avatar
Drives: himself crazy
Join Date: Sep 2011
Location: PA

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I've had mine a few weeks a hear it too. Agree with it likely being electrical noise through speakers. Definitely when I let off the gas which seems weird. I guess it could be turbo whine as the engine noise quiets down when I let off the gas but that seems less likely. Turbo should be louder under more power not less.
'11 335i xdrive Performance Edition BSM/Black
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