When I drive the 300D fast or if their is a strong head wind, I can hear a loud squealing/ squeaking sound coming from the passenger door area. I'm sure it has something to do with an air leak. Note: My mother had a 1976 Pinto - can I say that in the same paragraph as Mercedes? - that sounded exactly the same. It was air escaping through the seals. I'm wondering if maybe there is a vent that is stuck shut and forcing the air through the seals.

Anyone with a similar problem?

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1984 300Sd 210k

Former cars:
1984 300D 445k (!!) (Strider) Original (and not rebuilt) engine and transmission. Currently running on V80 ( 80% vegetable oil, 20% petroleum products). Actually not, taking a WVO break.
1993 300d 2.5 275k. Current 120/day commuter
1981 300SD 188k (Hans) Killed by a deer