Genuine OEM Audi Voltage Stabiliser Control Unit, part number 8K0959663A. This electronic control unit is responsible for regulating and stabilizing the electrical voltage supplied to various vehicle systems, protecting sensitive components from fluctuations and ensuring consistent performance. It measures approximately 0.17 meters in length, 0.143 meters in width, and 0.036 meters in height, weighing 0.455 kg. Opting for a genuine OEM voltage stabilizer ensures correct firmware, precise calibration, and seamless integration with the vehicle's complex electrical architecture.