Auto air conditioning do not work on 2006 Audi A4

Auto air conditioning has been running very well, cooling is also very good. Is to open the way, suddenly gone, the fan is gone, what amazing?

Asked by for the 2006 Audi A4
3 answers
Check the insurance does burst, or switches, relays. If the car circuit no problem, check the outside compressor belt.
I think you need a obd2 tools to check out where the problem is
at first I would the refrigerant level if it is low then top it up to see if the compressor comes on if it is low then check for leaks and go from there.check to see if your fan is working while the compressor is on
get your mech to diag as not to waste money