Serpentine belt making loud noise

Asked by Sep 09, 2015 at 08:12 PM about the BMW 1 Series

Question type: Maintenance & Repair

Sepentine belt making noise . how can
i fix it

2 Answers

20,775

is it comming apart????or is it turning something/ac/alt/wpump/ps/ IDLER PULLEY thats making a noise???

42,105

The belt is likely not the problem. It is probably and idler, tensioner or defective a/c clutch or compressor. My bet is the idler pulley bearing is bad.

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