E46Fanatics - View Single Post - Air release sound on shut down of motor?? 330i
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Old 06-28-2011, 10:00 AM   #16
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Join Date: Apr 2010
Location: Murrieta, CA
Posts: 9,300
My Ride: '94 325iC & '00 323i
Originally Posted by clydesdale View Post
I believe it is something to do with the vacuum. I hear a motor turning inside the car and when the motor sound stops I hear an air release sound. Anybody know what this is? Thanks.
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