Hello everyone, I have a '98 e300 with a belt squeak. I've used a stethoscope to determine conclusively that the squeak originates from the area of the crank pulley. I have replaced nearly everything else in the belt system in an attempt to eliminate the squeak, but nothing has helped.
The squeaking happens upon starting the engine and for the first ~5 mins of driving. After that, it goes away.
Stuff I have replaced so far, with no effect:
- belt
- tensioner arm
- tensioner arm bolt
- tensioner shock
- tensioner spring
- tensioner pulley
- alternator pulley
I got the part number off my crank pulley today, visible in the attached photo. It is 6060300403 but I'm wondering if maybe it's been superseded and there's a newer part number I should be using? The reason I ask is this p/n is original to the car, you can see the "04 98" in the photo, and also this p/n is hideously expensive. It's $800 or so at the usual online vendors.
Has anyone else had to replace this thing?