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      12-03-2012, 07:18 PM   #5
BMV///M3's Avatar

Drives: BMW f80 M3
Join Date: May 2012
Location: CA

iTrader: (1)

I have had the same issue for a few months. Under warrenty and been to the dealer 3x, still not resolved. First time was the belt tensioner, 2nd time deflection pulley, they also found oil cooler gasket leaking and replaced the guide roller for the alternator drive belt. BUT its still chirping at a cold start. Once the car warms up it goes away. I have to drop the car off in the evenings and pick up a loaner because the problem can only be duplicated on a cold start for the techs.

Drives me bonkers. I'm going to let them know what you've done here to fix your problem. Thanks.

ps. just looked at your vid. my chirping is at a much faster pace. hmmm...