Tl* the contact owns a 2008 audi a8. while the vehicle was in use, the check engine warning indicator illuminated. the vehicle was taken to audi pittsburgh (2050 liberty ave, pittsburgh, pa 15222, (412) 245-4200) where it was diagnosed that the massive air flow sensors failed and needed to be replaced. the vehicle was replaced, but the failure recurred multiple times with an abnormal vacuum noise coming from the engine. the manufacturer was made aware of the failure and did not assist. the failure mileage was approximately 119,000.