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Old 10-25-2005, 07:27 PM
Registered User
Join Date: Oct 2003
Location: augusta,ga
Posts: 13
changing belt tensioner on 98 e320

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Dear Webmaster,

My belt tensioner on my 98 e320 seized up today and threw tthe belt. I
bought a new tensioner and belt and want to replace them, but I don't
the threading pattern to use to attach the belt to the pulleys. Also,
is a large pin sticking out from my new tensioner and I don't know what
is (it looks like a temporary pin, not something permanent..maybe it is
supposed to help me align something???) I have never done this before,
but I
am great at following directions. I have already removed the old belt
tensioner but I need a diagram of how the belt goes around the pulleys
and I
don't know what to do about the pin sticking out of the new pulley. I
someone out there can help, I'm running out of daylight.
Earl Jones

Last edited by earldjjones; 10-25-2005 at 07:30 PM. Reason: inadvertedly including non-relevant content
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Old 10-26-2005, 01:06 AM
Registered User
Join Date: Apr 2003
Location: Richardson, TX
Posts: 92
The pic in this thread ought to help on the belt routing.

'98 E320 W210/M112 What's leaking? (pic)
1998 E320 120K mi
1991 Miata 80K mi
2001 Ranger 109K mi
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Old 10-27-2005, 08:44 AM
Registered User
Join Date: Oct 2003
Location: augusta,ga
Posts: 13
changing tensioner on 98 e320

Went to and took out a subscrition for 25 bucks. Best money I ever spent. Found out the hard way what the pin is in the tensioner for after I cut it off with a dremel tool. Turns out the pin keeps the tensioner from snapping into place so you will have room to put the bolt into the engine block! Anyway, job done, saved a hundred dollars or so doing it myself and learned a little more about my beloved E-class.

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