just been to see a a4 se 2.7 tdi on a 06 plate dont now mutch of audis as iv allways had subarus a couple of things i need to now is it has 107000 miles on the clock and last service was at 89000 is this high milag for this engine also it says service in 400 miles an i drove for 50 miles and it still says 400 miles and so many days and ableep noise with 1mph light comes on the dash the miles per gallon reads all over the place at one piont it said 200 miles to the gallon realey want to buy this car but these things are putting me of thanks in advance