[s-cars] AC compressor shuts off at 42 degrees F

[Tom Rodriguez]

The AC compressor on my S6 shuts off at ambient air temperatures below 42
degrees F.  This causes the windows to fog up, particularly if it's raining
out.  Cranking up the heat on the defroster only makes it worse since the
hot air is humid and the windows are cold.

 

Any DIY suggestions to fix this?  And what is the minimum temperature
supposed to be for the AC compressor to remain engaged?  I'm going to ask
the Audi shop to fix this if I can't do it myself, but looking to save some
$$.

 

Tom Rodriguez

'95 S6, 281K miles