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Old 02-13-2001, 03:43 PM
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I have a 1985 300CD that when bought (last summer) had very unpleasant whistling from passenger side window at speed. When I looked closely at window weatherstripping, I noticed that there were small gaps (1/16 to 1/8 inch) in it where sections were joined. I think from just being old and shrinking.

I used some silicone and carefully filled in the gaps. No big deal if you are careful. Can get the stuff in small tubes with narrow tips. I used clear buy if you can find black, would be better. Silicone is flexable and completely waterproof.

Virtually all whistling now gone! Small openings make big noises.

Good luck.

'85 300CD @ 138k miles
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