Engine squeeling noise

[Mainman857]

2006 m3 stock 135k

Started the car up this afternoon and noticed a slight squeeling noise from the engine. Nothing major but defiantly different. Waited a few minutes. 18 degree day and I didnt notice it anymore.

Now had to make a night store run and started the car up and the squeeling was 10x louder and changed with the engine rpm. Turned the car off and grabbed the work truck.

My thoughts are water pump. Havent popped the hood yet il do that part tommorrow.

Any other ideas?

Vanos and rod bearings done about 7k miles ago.

Thanks

[Thoglan]

Probably just belts

[Mainman857]

Il check that today.

How can I confirm if its the belts or something else?

[Ob917]

When mine did that it was the throw out bearing.