One of my friends came over with his 02 Audi TT for me to adjust his mileage. He had got the dash back after getting the fuel gauge problem fixed, and wanted me to reset his milage to the correct figure I logged on with VagTacho, went to the 'Audi after 2000' ECU, and the correction box came up. I put the correct figure (in kms) in the box, the program ran, dash went blank, and then came back after the 10 second countdown with 999999 miles. It then said to disconnect the battery for 2 mins, which I did, but stayed at 999999. I drove the car for over a mile, and the counter did not change. I tried again, and the reported mileage in VagTacho was correct, but the dash still reads 999999. One option is to do it manually - but I need to know what Hex address I'm looking at to change values. Anybody got any clues on a way out of this?