Can anyone tell me if the mpg I am getting is correct. My A6 a 2007 2.7tdi Quattro, the Audi website say I should get 39.8 combined, 30.1 urban & 48.7 extra urban is this for the same engine my car has or has the engine changed ? The best mpg I get which I must admit would come under urban i.e school runs is 26/27 mpg ? The car is an approved used 40,000 miles though I did note the last main service was carried out by a Halfords service centre though this was not noted until going through the history after the purchase. If the mpg I am getting is correct then fine, though if not then obviosuly something needs looking at. Any help will be much appreciated.