Genuine OEM Audi Rear Right Door Lock with Contact Switch, part number 4F0839016B. This electromechanical assembly is installed in the rear right door, responsible for securing the door and providing feedback on its open/closed and locked/unlocked status to the vehicle's central locking system. It integrates the latching mechanism with an electrical contact switch. Weighing approximately 0.741 kg, this complex component ensures both physical security and proper electronic communication. Using a genuine OEM door lock guarantees precise fitment within the door panel, reliable locking and unlocking functionality, and accurate status reporting, which is crucial for vehicle security and convenience features.