Window Screech

[Ti Kan]

>Any guesses as to the source of screeching noise when the driver window is
>lowered?  Sounds like something sharp rubbing on the glass, but there are
>no scratch marks.  I have this sort of noise on both my 200q20v and my
>wife's V8.  I noticed today that there was no screech on my 200 when the
>glass was wet from rain.

My S4 biturbo's driver side window occasionally screeches on the way
down.  It is the original window and was never replaced.  I notice that
it usually happen in very low humidity conditions, perhaps in a somewhat
dusty environment (such as when driven or parked near a dirt road).
A car wash always cures it...

Weird.

-Ti
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