I have just bought a 55 plate A6 3.0 SLine. the car is immaculate apart from some of the interior trim which seems inferior and badly worn. The centre console around the MMI volume knob is completely worn down. Also, the rubber cover on the window buttons is worn through down to the base plastic. its very strange, as its as if these areas are very soft and made from poor quality materials. does anyone else suffer this same issue? can I get the parts repaired/replaced FOC by Audi? is there a parts dealer that supplies parts like this? help or advice greatly appriciated..