I've picked up a 2011 A5 Cab with the 2.0TDI 168BHP engine. The engine isn't particularly inspiring but it's quick enough for me. I was really hoping for better economy as i'm only getting around 36MPG on average, my daily drives are generally town driving with some bypasses and no motorway but even still I was expecting at least 40MPG I had an A6 2.0TDi 177 which returned 40MPG n average and a 59 plate A4 2.0TDI 140 which got me well into the upper 40s on average! Seems really low for this engine? Can't find any faults with the car and I am a careful driver? Anyone else had anything similar and or any tips?