So I’ve just sold my 2009 A4 Avant 170 2.0 tdi which I owned for 5 years. It would return around 44mpg of mixed driving and 53mpg on a motorway run. I’ve replaced it with a 2012 Facelift A5 sportback, again the 2.0 tdi but this time the Quattro. Now I know the Quattro has more moving parts but I can barely get over 35mpg out of it even on the motorway which to me is dreadful. Could there be a fault somewhere or is this what they are like?