awbooth

I hjave a 2005 MB C240 AWD, Serpentine Belt wobbles after changing Alternator, how can I fix! I received a response from someone on this one but I would like more opinions if possible. I changed the alternator and my C240 and put everything back together only to find that the belt has a wobble as it spins on all the wheels. I called the dealer and they told me 99.9% the alternator is on correct only because the spacers that are in each mounting hole will just allow the new alternator to fit into its place, then you slide you mounting bolts in. If you try to move those spacer bushing things you won't be able to get your alternator to mount properly. SOOOOOO......The dealer told me to remove the belt and play with the water pump pulley to see if it will wobbles, move side to side or up and down which would indicate a bad pump. The water pump pulley was solid as the other one's were as well. The only wheel that might have a slight wobble was the idler pulley to the right of the alternator pulley. It's all plastic except the metal center bearing that MIGHT BE SHOT!!! Does anyone think it's the $35 idler pulley or could it be a warped belt? I'm hoping someone has had the same experience? Maybe look at your belt and see if your's wobbles?

awbooth

Ok, just wanted everyone that after replacing the belt the wobble went away. I changed the idler pulley, still wobbled so I changed the belt and it's perfect. Just a piece of advise, don't panic like I did and think of the worst, just a $40 pulley and a $50 belt, job done!! Love this car.

Carsy

well done.

awbooth

thanks