Genuine OEM Audi Window Regulator Switch, part number 8K0959855BV10. This electrical switch controls the operation of a vehicle's power window, allowing for precise up and down movement. It is typically installed on the front left door panel. The switch features a black and silver V10 finish, designed to seamlessly integrate with the vehicle's interior trim. Choosing a genuine OEM switch ensures correct electrical calibration, reliable operation, and a perfect aesthetic match with the surrounding interior components.