Genuine OEM Audi Rear Right Electric Window Regulator, part number 3C5839462J. This assembly is responsible for the precise and smooth up-and-down movement of the vehicle's rear right door window. It consists of a motor, cables, and guide rails that work in conjunction to operate the window glass. Weighing approximately 2.89 kg, this regulator is built for durability and quiet operation. Choosing a genuine OEM window regulator ensures correct mechanical alignment, proper electrical connection, and long-term reliable performance, preventing common issues like slow operation or window binding.