Audi A4 1997 and 1998 No Heat
 

I've got a problem on two of my Audi's at the same time :(

One car is 97 2.8 and another 98 2.8
Car warms up no problem and when I put it on "HIGH" or any high temperature it blows out cold air....
it takes some time to warm up before the fan starts to blow it but still blows out cold air.
I read online that there is a little motor under the dash that opens and closes a door to divert hot or cold air inside the car.
does anyone know where it's located? How to look for it? and etc.

Both cars have brand new thermostat so that's out of the question.

thanks for you help.

Re: Audi A4 1997 and 1998 No Heat
 

I own a 2002 Audi A4 and have the same problem....yesterday I change the thermostat and still have no heat

Re: Audi A4 1997 and 1998 No Heat
 

Same/similar issue being discussed here. I will try this today and see where things go as I have the same problem.

Car has no heat - trouble connecting VAGCOM to climate control unit - Audizine Forums

Re: Audi A4 1997 and 1998 No Heat
 

Finally solve my problem!!! my radiator was jamed with some kind of paste (don't know why??).....now I've got heat

Re: Audi A4 1997 and 1998 No Heat
 

did you put the green fluid in when the thermostat was changed?... the red stuff turns into a paste when you mix the two.