Genuine OEM Volkswagen Automatic Gearbox Multi-Function Switch, part number 09B919821. This switch is responsible for controlling multiple functions within the automatic gearbox, often including gear selection and safety interlocks. It provides critical input to the transmission control unit for smooth and safe operation. Weighing 0.144 kg, this component is built to factory specifications. Choosing genuine OEM ensures precise calibration and reliable signal transmission, vital for correct gearbox functionality.