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Old 03-15-2003, 06:41 PM
mike345 mike345 is offline
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Join Date: Dec 2002
Posts: 6
Remove and Refit Serpentine Belt on 190 engine

I am about to replace my serpentine belt on a 1995 S500 w140 with the 190 engine.

I think I have located the tension adjuster, but after searching the forum all the ones mentioned seem to have a bolt in the center.

Mine has what looks like the end of a torx screwdriver sticking out of the center of the pulley. I found the posts on how to replace the belt.

How do I loosen this type of tensioner/adjuster and what should I look for to determine if it is worn and should be replaced?

Also how do I retension it after installing the new poly-v belt?

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