Got some nasty squeeling from engine bay. I think tensioner is failing. Just want opinion if i should replace pulley only or whole tensioner... There quite pricey.
Bish, looking at your photo again it looks like your belt is already staring to come off! I would have thought the bearing has loads of play in it.......
Working on the car this saturday will have belt off and check everything can only find pulleys On international ebay. Dont think mercedes sells them on there own.
My harmonic pulley is bad aswell i looked through my phone camera as it displays slower than the eye can see and its wobbling like mad i think this is whats causing my belt to Hang off then tensioner pulley and rough idle. I have a febi pulley on the way for noW. Seems my car starting to have some minor issues rescently! £££