E46Fanatics - View Single Post - whistling noise when starting
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Old 01-10-2013, 12:48 PM   #7
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Join Date: Aug 2011
Location: Palm Springs, CA
Posts: 197
My Ride: 02 325i-JapanRot Red
Originally Posted by Sansho View Post
If it happens when you start up and goes away around 2 mins later, then it's associated with your secondary air pump (on the passenger side of the engine), as RG5384 mentioned above. The video sounds more like bearing noise. When was the last time the tensioners were replaced?
Yeah mine usually goes away after a couple mins or when the car gets warm. Could you help me out and inform me on what it could be and where exactly is it at? I am fairly new to BMW's and would like to most do most of the work myself rather than mechanics.

Last edited by Jsmk23; 01-10-2013 at 12:49 PM.
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