Hi all, my Dad has an A6 2007 2.0l tdi 140bhp BRE engine code (i think)
anyway the aircon hasnt really worked this year, so i plugged it into VCDS and was suprised to see no faults found on the aircon, it was showing pressure in the system. So thought it was just a re gassing. The auto button works but the fans dont come on in the enginebay, however they will come on when doing an output test with VCDS, I Took it in to be regassed today, and they confirmed there was very little refrigerant, 55g i think he said, and it should be over 500, but there are no leaks, but alass still no working aircon. After an hours drive tonight there was a very slight chill to the air, but still not enough to chill the cabin, and no fans on, with the bonnet open and engine running there seems like no click or rev change when i click between econ and auto, so i suspect the compressor has failed, but wouldnt this register a fault? Or am i barking up the wrong tree?