ralph33d

Hi I have a 2005 audi a3 sportsback 1.9 tdi 105bhp in last few days ive noticed that my heating in car is just blowing cold air and fans infront of radiator are running constantly at high speed . The coolent is full does anyone have a answer to this

gsjohal

A common problem with the early A3 is that the fan control units fail, causing them to run at full speed. Have the engine fault memory scanned to confirm. If a fault is logged, go for a fan kit and have them replaced as the ecu is built into the main fan.
Heating fault is possibly related but again also have the ac control unit scanned for possible heat flap motor faults.

jack1568

I scanned with VCD . there is no codes . any help .