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Thanksgiving maintenance and 2 questions.. (long)..

In message <s482ac03.043@wppost.depaul.edu> Alex Kowalski (audial@aol.com) (Law Guest Account) writes:

> Last but not least in this very long and rambling post, my engine cooling
> fan motor is developing a strange noise.  Most of the time it runs very
> smoothly, but especially on the low-speed setting it develops a
> high-pitched moan (it actually sounds like a "ringing") that waxes then
> wanes, goes away for a few minutes, and then slowly comes back. 
> Bearing lubrication?  Anyone heard this before?  How do I diagnose the
> fan motor to determine if it's OK and/or lubricate it?

I heard something like this on a 20v ur-quattro.  It turned out that the 
extreme tips of the fan blades were fouling a brake line.

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club