Genuine OEM Audi Four-Wheel Drive Control Unit, part number 80A927755. This electronic control module is essential for managing the vehicle's four-wheel drive system, ensuring optimal traction and power distribution to the wheels. It is typically mounted within or near the drivetrain assembly. The unit weighs approximately 0.14 kg and measures 148mm in length, 80mm in width, and 35mm in height. Opting for a genuine OEM control unit guarantees correct firmware, precise sensor calibration, and seamless integration for reliable and responsive four-wheel drive performance.