Updated instructions to reactivate start/stop functionality after update. On Audi A6, A7 and A8 vehicles with 3.0L TFSI engines manufactured within a specific period, the ambient air temperature sensor may be incorrectly diagnosed in the engine control unit. This Update is in effect until removed. Procedure is valid only for vehicles that show the 24BN code in the Elsa Campaign/Action Information screen on the day of repair. Vehicle must be within the Federal Emissions Warranty. Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin. Procedure must be performed on applicable vehicles in dealer inventory prior to sale. On Audi A6, A7 and A8 vehicles with 3.0L TFSI engines manufactured within a specific period, the ambient air temperature sensor may be incorrectly diagnosed in the engine control unit.
