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Old 06-10-2014, 01:10 PM
rayhennig rayhennig is offline
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Join Date: May 2009
Posts: 343
Quote:
Originally Posted by christiandk View Post
Hi guys,

I was just checking my water pump and replaced some sensors when I saw this "nut" had broken off.




1. What is it?

2. Should I replace it ASAP.

I suspect the my mechanic has broken it when he replaced the tensioner pulley not too long ago....hmmm.

The car is a 230CE

Best regards from Copenhagen,

Christian
That looks like the tensioner adjuster. Could be bad news.

I am not an expert on this but I rather think you might need a new tension adjuster (not the tensioner itself). I would guess that someone tried to adjust the tensioner rather aggressively without loosening it. Only a guess, though.

Make sure you get this resolved by a Mercedes expert and not a "normal" garage.

Best regards from Paris.

RayH
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