Genuine OEM Audi Ignition Start Stop Button, part number 4N0905217A. This crucial switch is responsible for activating and deactivating the vehicle's ignition system, providing a convenient interface for engine control. It features a stylish silver button face accented with a distinctive red trim. Weighing 0.037 kg, this button is built for durability and precise electrical signaling. Choosing a genuine OEM switch guarantees reliable long-term performance, perfect aesthetic integration, and seamless functionality with the vehicle's complex electrical architecture.