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Old August 16th, 2012, 04:15   #8
oilhammer
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Join Date: Dec 2001
Location: St Louis
Fuel Economy: fantastic
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Well, the engine needs to be running on that car to turn the compressor, and the compressor needs to be working to make pressure in order to turn the fans on.

I am looking into how/if you can read refrigerant pressure via the scan tool. VAG went back to a non-electronic HVAC system on the decontented American Jetta to my understanding, so this data may be somewhere else.

You have VCDS, can you access the "climate control" function at all?
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