a4 ac question

[thejimrose]

all - quick ac question. my ac won't come on when it's around freezing
outside.  if i select defrost the ac will come on automatically, likewise if
i manually turn it on it works fine, except when in tahoe - high and cold.
it will work fine once it warms up a bit - usually i'm down the hill and the
temps warm up.

when i click the ac button the ac symbol will come on but for only as long
as i hold the button. is this some weird feature or is my ac compressor
freezing or sticking in the cold?

the first time there was a lot of snow out, so i assumed snow froze it. this
last time there was no snow on the ground and temps were around 32.

thanks
jim

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