While entering the car using Audi Advanced Key, the doors will not unlock. When pushing the start button, ? Key Not Recognized? shows in the Driver Information Display. No relevant DTCs stored in any modules. Battery voltage of keys used by customer is at or above 3.0V. Concern may or may not be duplicated. A portion of A7 production was built with the incorrect antenna amplifiers in the vehicle, which causes sporadic
operation of the keyless remote, espcially when paired with Audi Advanced Key.
