sangria

Hello. My air conditional was acting weird. It doesn't blow cold air when the car stops at the lights or in the parking lots. But it works great while driving. Then I went to dealer. And they scan my computer. And they said we need to change Aux Fan control unit and also one of the fan on the car. I ordered OEM Aux Fan Control Unit . And I installed it. I connected Vagcom and cleared the Fault code but It still acts same. I checked the fans. They both works fine to me. They turns 10 seconds and stops. So I didn't get this part. How the heck this AC works fine while I am driving but it doesn't work when I stop ?

sangria