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Old 03-10-2002, 08:02 PM
Posts: n/a
belt tensioner for the E320

is to the right of the water pump as you face the car. It is a brass long nut held in by a bracket and a long screw ....the nut is pointing up.

There are two nuts which must be loosened:

First, the 10mm hex at the 5:00 pm position next to the water pump pulley. Give that about 1-2 turns.

Then loosen the long brass nut about a 180 degree turn. This will allow you to loosen or tense the belt.
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