Hi all   Have covered about 1,000 miles on our Fabia 1.0 TSI DSG and am now aware that on the over-run the interior fan in the car speeds up. Is this an energy recovery system on the car to offset the loads on the system by the stop-start on the DSG cars?   Now that I am aware of it when the fan is full on it is quite irritating in traffic when the fan increases in speed (and noise).   Cheers, Bill