I have a 1993 190e 2.6. I was replacing the serpentine belt, but it will not tighten! The 19mm nut is no longer there, only the 13mm one. However, after trying to tighten the 13mm nut, it started to strip the threads on the bolt. I kept trying and eventually the washer was bending and the plate that the nut is on is a little bent.

Would I need a new tensioner, the tensioner shock, and the adjusting thing with the 13mm and 19mm nut? How would I take the tensioner out? Would I need to remove the water pump?

In order to remove the radiator, is it necessary to remove the condenser? How would I remove the radiator? The M103 is tight in the 190!!

Thanks in advance.