E46Fanatics - View Single Post - Air release sound on shut down of motor?? 330i
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Old 06-27-2011, 07:56 AM   #4
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Join Date: Nov 2006
Location: Ocean State
Posts: 3,171
My Ride: ///M3 & 330i ZHP

Funny you mention this because I recently noticed this with my ZHP as well. Not sure what causes it but now that I'm aware of this it does happen every time I shut down my engine.
2004 TiAg ///M - 171,000 miles.......................2003 Imola ZHP - 180,254 miles
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