Thread: Valves on 1991 300D...
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Old 08-30-2009, 01:39 PM
tombance tombance is offline
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Join Date: Aug 2008
Location: United Kingdom
Posts: 125
Very likely to be the belt tensioner shock absorber, the bushings go and it makes a clacking noise, but only at idle.
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1991 W124 250D - 130k Miles

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