[A4] Blower Fan Squeal

[Richard Hurt]

It seems my fresh air ventilation blower motor is having some problems.
When the outside temp. drops I get a wild squeal that is equally loud inside
the car as out.  It doesn't respond to engine speed so I am pretty sure it's
not a squeaky belt or A/C compressor and If I turn off the ventilation
system the noise stops, and then when I turn it back on the noise comes
back.  This lasts for about 10-30 seconds (depending on how cold it is
outside) and is pretty annoying.

It looks like the vent blower is pretty easy to get to by removing the glove
box.  My question to you is has anyone done this replacement and how hard is
it?  Any prices for a new blower motor or should I have this one rebuilt?

Thanx!
  Richard