Hey all, first time post, only recently started having issues with my A4
couple of months ago, I had my serpentine belt tensioner arm replaced, as the bolt holding it in place had sheared off, now two and a half months later, it has happened again, new part, same issue, this time, I have the tensioner arm out, and as you can see from the pic, what appears to be a cut in the plastic. I'm guessing this is what caused the first, I just couldn't get to it to see.
anyone seen this before, have an idea what could be causing the damage, I have inspected the belt, seems to be no wear on it at all, no damage not even fraying anywhere?
I have it booked in for Monday, but would appreciate any thoughts