BMW M3 Forum (E90 E92) - View Single Post

Kamen · 05-30-2016, 08:44 AM

Mine seems to be making the same noise, and it always has. In hindsight, I had a bad AC compressor bearing, which was causing noise of sort of the same pitch, but much more pronounced. It was getting stronger with RPM, and was disappearing after the engine is warmed up. Turning the AC on/off didn't make a difference. The dealer charged me around $2.2k for the repair. Good thing, I had a warranty.

05-30-2016, 08:44 AM	#5
Kamen Private First Class 70 Rep 162 Posts Drives: BMW M3 E92 Join Date: May 2016 Location: Las Vegas iTrader: (0)	Mine seems to be making the same noise, and it always has. In hindsight, I had a bad AC compressor bearing, which was causing noise of sort of the same pitch, but much more pronounced. It was getting stronger with RPM, and was disappearing after the engine is warmed up. Turning the AC on/off didn't make a difference. The dealer charged me around $2.2k for the repair. Good thing, I had a warranty. Last edited by Kamen; 05-30-2016 at 08:54 AM..
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