Genuine OEM Audi Start Stop Switch, part number 7P2905217A3Q7. This electrical switch is responsible for activating or deactivating the engine start-stop function, contributing to fuel efficiency and reduced emissions. It is typically located within the vehicle's center console or dashboard. This specific switch is configured for Right Hand Drive (RHD) vehicles and is finished in color code 3Q7. Genuine OEM switches ensure precise electrical calibration, reliable operation, and seamless integration with the vehicle's existing systems.