Tl*the contact owns a 2007 audi a6. while driving approximately 40 mph, the tire unexpectedly became flat. the contact pulled over to the side of the road and inspected the vehicle. the front driver side tire was replaced with a spare tire. the vehicle was taken to the dealer for diagnosis and repair. the failure was due to a defect wheel rim. the vin was not accepted. the failure mileage was approximately 51,000.