Genuine OEM Audi Ignition Starter Switch, part number 8K0909131C. This component activates the vehicle's ignition and starter systems, providing the necessary electrical signals for engine start-up. It is typically located within the steering column or dashboard assembly. Weighing approximately 0.212 kg, this switch is designed for precise electrical function. Choosing a genuine OEM switch ensures correct signal characteristics and seamless integration with the vehicle's complex electrical architecture.