Drive Belt Tensioner

box car

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Please help. I have a 2001 E220CDI. The Drive belt has broken . I have a new one to fir. But cannot see how the tensioner works it has a 17mm bolt on the front which will move the tensioner to the right and left. But how does it tighten on the belt.? Need help urgently. would appreciate any advice.
 
C

C180 Chris

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Hi,
I think that they are on a damper, so you put your spanner on the nut and pull to the left to release tension.

hope this is of some use,
 


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