The actuator motor with OEM part number 8V0862153B is the fuel filler flap lock actuator used on many Audi models. It’s an electric actuator motor and solenoid assembly that controls the locking and unlocking of the fuel filler door in coordination with the vehicle’s central locking and body electronics. When you unlock or lock the car, the actuator moves the fuel-door lock mechanism so the flap either releases for refuelling or stays secured against tampering. This motorised component is essential for convenience, security, and seamless operation of the exterior fuel access system.