Thanks for the tip. I didn't realize that this was a weak spot. I've only had the belt off 4 times (3 belts and a water pump), so all is fine so far... I'll go with the stethoscope for regular checks.

Can anybody give me advice on the condition of my bearings given what I observed?

Thanks!

__________________
D.H.

04 ML500
02 E430

Experience is something you don't get until just after you need it.