First, obtain your complete VIN number from either the driver-side windshield or the driver-side door jamb label. Let's say your VIN number was WAUBA24B3XN104537. You'll need the last SIX digits (WAUBA24B3XN 104537 ). Kit Description: 1999 - 1999 Audi A6 2.8 Liter 30 Valve > Up to Vin 104400.