Hello

I am wondering if someone can tell me if this noise is considered normal for Audi S4. I'd be very surprised if it is


Recently I took it to Kingston, ON dealership for a few repairs, this being one of them. The technician couldnt reproduce it, and from what he could reproduce, he said 'the belt is just doing its job'.

This doesn't make much sense to me; no other cars on the street do it, no other cars i ever owned do it.

Thanks

Sasha