Hello Audi lovers:
Haven't had any problems lately with my 89 100, but I have noticed lately
that when the engine is under load ( near zero vacuum ) that the a/c
switches from the upper vents to the lower vents, and blows hot air. It
seems to be switching to heater mode. As soon as I let up on the gas, it
returns to normal operation. The a/c is cold, and blows through the upper
I have checked the recirculation door, and it is working properly. Where do
I look next?
89 Audi 100
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