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      06-11-2021, 03:18 PM   #1
MetalsMan
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Drives: 2015 Mineral Gray M3
Join Date: Apr 2017
Location: Baton Rouge, LA

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Idler Pulley Replacement? Aux Belt broken

Gentlemen,
Last night I got a charging malfunction warning, and the ac stopped blowing cold. I checked the engine bay and can see that the auxillary belt has either fallen off or has shredded. I have seen some reports that the idler tension pulley has gone bad on these cars and has needed to be replaced. I track the car, so maybe it's simply wear and tear.

In any case, I am trying to decide to replace it and the belt myself or have the dealer do it. Anyone do this at home? Have any input?

Thanks
Jason
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