Hi I'm new to the forum. I have a 2002 Audi TT Turbo Quattro. This past weekend it was very hot. I was running the AC fine for about an hour, stopped someplace came back to the car and then the AC started blowing warm air instead of cool air. The next day I started the car and it was still blowing warm air. I looked at the temperature reading on the dash and it was a little to the right like right past the mid mark. I drove around the corner and the cold air started blowing out again. After this the AC worked fine for two days. Now today, I start the car and cold air is blowing fine. I'm driving on the highway, cold air is fine. Then I come to a stop all of a sudden the warm air starts blowing out again, and the temp guage starts moving a little to the right like a notch or two past the mid mark. By the time I get home and let the car idle, the temp gauge moves all the way to the right stating that the car is overheating or too hot, but no smell of ani-freeze, no smoke, and AC still blowing warm air. Does this sound like a thermostat issue? If not, can anyone tell me what it may be and what I should expect to pay to have it repaired at the dealer?

 

I'm new too. My 2004 TT DSG has a very similar problem. Engine does not overheat, but A/C only works intermittently when exterior temp is above 80F. Dealer unsuccessful in re-creating problem. Dealer is 1+ hours away, so hard to know when hot enough to bring car in. I have no answer, but share a possibly similar problem. I hate sweating in my car on hot days. Please!!, can anyone help us???

 

Thats a hard one to help with guys. You can't reproduce the problem, how would anyone know where to start?

Only thing I can think of is to check and make sure all the wires are intact going to the ac compressor. Maybe theres a loose wire or something, randomly turning your compressor off?


good luck with it (both of you)

 

ya i agree, check the wires....possible the therostat is bad and not opening properly

 

2 issues completely here (over heating and A/C) look at the overheating first and the thermostat is a good place to start

 

also think about changing the timing belt, water pump, thermostat, tensior, idler pully, etc better to be safe than sorry(5500 in repairs )

 

Mine does the same thing I know on my 012 GMC Sierra it was that I had to recharge the system also you have to remember that these cars are built to european specs and that they dont need the ac that much in germany cause it dosent get that hott. I know this is the case with the VW.