Genuine OEM Volkswagen Door Window Regulator, part number 3C9839461L. This assembly controls the smooth and precise movement of the door window, ensuring proper ventilation and security. It is designed for the rear left door. Weighing approximately 3.16 kg and measuring about 1 meter in length, this regulator is a robust component. Using a genuine OEM window regulator ensures correct fitment, quiet operation, and long-term durability, preventing common issues like window binding or failure.