Sigur

Hey! Sorry for my english, I am Norwegian... I Have an A4 B6 2002 1,9tdi quattro, it has an doubble climatecontrol for left and right temperature. This will blow the right temperatured air on the left side, but on the right side it only blows warm air, no matter what. We have connected VAG-COm and there is no faults... we tried to reset the engine that distributes warm/cold air behind the glove compartment (right side) throug software, and it seems to move like it should. Then it works fine for a couple of houres and then it fails again and only flows hot air on the right side again.... Could it be a sensor? I know there is a sensor on the climate control and one on the roof controlpanel, but where is the sensors that control the distribution on left/right airflow? Thanks in advise for any answears. Thanks.:-) I|m new so be kind ;-)