X5 Noise from M54 Engine

[Fifty150hs]

Originally Posted by Optllizer

I find it interesting that when its warm the noise completely disappears

Mine would do the same. When they heat up there's less friction because they expand?

[guntherrex]

probably better grip from the rubber. my screech was caused by a seized water pump... might want to check the driven items on the belt (water pump, PS pump, alternator?) A new belt and tensioner while in there can't hurt