[BMWDriverX]

Originally Posted by Sam21LBC

I'm having a squealing noise come out in my 640i not sure if yours sounded the same.

https://drive.google.com/file/d/1M-g...w?usp=drivesdk

That's not the sound from the gasket. That sounds like a busted pulley bearing. Take it in to a shop and have them replace the faulty pulley before it locks up on you and shreds your belt among other issues it can cause depending on which pulley it is.