kavik

I'm currently putting a set of Billet idler pulleys on my 2013 C63. I'm trying to put the serpentine belt back on, but all the threads and belt diagrams I have found to reference do not show one with the extra pulley down at the bottom. Does anybody have a belt routing diagram that shows it with this extra pulley? I currently have it running like this, but I'm thinking maybe the belt should go up and over the idler pulley? Thanks for any help I don't know why my goggle search fu is so weak

Alex-r-1

kavik

Thank you!. Its a weird little pulley, #10, not much belt contact.

Alex-r-1

MrkiC63

Idler on wrong position. check other idler perhaps you mount it wrong place.

tai rahmaad

I got the same idler pulley and don't know why not much contact. Any answer?