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Evening all,

Looking for a second opinion on a recently purchased M3, noticing under load i'm getting a high pitched whine, i'm guessing it might be a worn belt/pulley tensioner, I've attached an audio clip to help.

https://instaud.io/j4G

This happens only when i'm accelerating from a low rpm , i.e 25mph in 4th and pulling away strong.

Any thoughts?

Cheers
 
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