Genuine OEM Audi Rear Left Door Control Unit, part number 4M1959595J. This electronic module is responsible for managing various electrical functions and components within the rear left door assembly. It is specifically designed for the rear left door, integrating with the window regulator, locking mechanisms, and other door-related systems. As a compact and lightweight electronic module, it ensures precise control and communication within the door. Choosing a genuine OEM control unit guarantees correct firmware, proper sensor calibration, and seamless integration with the vehicle's electrical architecture.