1976 300D - noisy V-belts..please help. - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 10-11-2010, 05:47 PM Thread Starter
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1976 300D - noisy V-belts..please help.

tightening is not the problem i think..i tried it but still it slips and creates noise..the V-belt for my a/c is the culprit..how can i fix this? please help me..thanks...
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post #2 of 3 (permalink) Old 10-11-2010, 08:30 PM
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I had the same problem on a 78 300D, found a bottle of belt dressing at my local auto parts store that would make the squeal go away but never for more than a few days, so save your money.

My belt looked ok, but must have had some glaze, because when I tried a new belt, problem went away. If you already tried a new belt & the tension is set right, I don't have any other suggestions. Don
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post #3 of 3 (permalink) Old 10-13-2010, 09:51 AM
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try a different brand of belt, or this is a longshot theory... try to isolate the pulley making the noise. then remove the belt and rough up the pulley surface w emory cloth to create grip that may have been lost over the years.

good luck!

1977 300 D 200K mi
1980 450SL 110K mi

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