Well, I figured it out. The belt was apparently not the correct one, I had it stored for use later and I must have gotten it wrong somehow. Not sure how it iis possible but it must have happened. I went to the parts shop and compared to a new belt and the new one was about an 1-2 in longer. Bought it and it went on fine. I dont have another MB that could have used this belt I have that wont fit, so I am still baffled as to how it can be wrong, but it is. NOW, the tensioner adjuster nut will not tighten up the belt all the way. I would have to guess the adjsuter bolt is stripped at the top. WOnderful! Thanks for all the help, that was weird. till not tight since the bolt is stripped.

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red