E46Fanatics - View Single Post - Air release sound on shut down of motor?? 330i
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Old 06-27-2011, 12:43 PM   #11
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Join Date: Aug 2008
Location: Agoura Hills
Posts: 258
My Ride: 2005 Dinan-S2 325Ci
mine does it too... i think it could be the sound of the throttle body closing... that is why its more audible for those with air intakes
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