sunebralla
Member
Hello!
Have read all threads I could find, dissected the Audi workshop manual and run repeated VCDS-tests but still do not understand what the problem is. No fault codes.
Issue:
Dialing in a high temp (23 C) on the climate control unit (outside temp 5-10 C). In the beginning everything works fine. Hot air blows from all vents (auxiliary heater works, engine is cool). Vents can be closed and opened and affects air stream.
After 30 min of driving. The air stream from all vents diminish slowly and almost stops. Blower works (opening the filter housing results in a small tornado). Air is hot but only trickle out of the vents. Car gets cold inside.
What is wrong? I was suspecting the temperature flap but if it closes I would get cold air wouldn't I? If I lower the temperature on the climate control unit I get a good stream of cold air. It is almost as if the heat exchanger would be clogged but there is a good stream of hot air to begin with. There is no difference if I engage the recirculation (the recirculation flap engages but it does not alter the inferior air stream)
anyone with experience?
Have read all threads I could find, dissected the Audi workshop manual and run repeated VCDS-tests but still do not understand what the problem is. No fault codes.
Issue:
Dialing in a high temp (23 C) on the climate control unit (outside temp 5-10 C). In the beginning everything works fine. Hot air blows from all vents (auxiliary heater works, engine is cool). Vents can be closed and opened and affects air stream.
After 30 min of driving. The air stream from all vents diminish slowly and almost stops. Blower works (opening the filter housing results in a small tornado). Air is hot but only trickle out of the vents. Car gets cold inside.
What is wrong? I was suspecting the temperature flap but if it closes I would get cold air wouldn't I? If I lower the temperature on the climate control unit I get a good stream of cold air. It is almost as if the heat exchanger would be clogged but there is a good stream of hot air to begin with. There is no difference if I engage the recirculation (the recirculation flap engages but it does not alter the inferior air stream)
anyone with experience?