Owned my first S3 for nearly 2 months now and I can't figure out the CC system at all. I could just read the manual but I thought I wou;d ask Audi whilst I was there. This is what they told me: ECon: Aircon Auto: Is just that, regulates the temp in the cabin Then you can overide all this of course. To get the aircon pumping, you need to switch you Econ, set the temp to LOW, put it on AUTO (I dont think that can operate same time as Econ?) and push the recirculate switch. It doesnt feel anymore cooler with this on. In fact, it feels cooler when just set to low, low speed fan and no Econ. Can anyone help?