Genuine OEM Volkswagen Trailer Detection Control Unit, part number 7P0907383F. This electronic module is responsible for managing the detection and integration of a connected trailer with the vehicle's systems. Weighing 0.211 kg, this genuine OEM control unit provides the precise software and hardware calibration necessary for reliable trailer recognition and safe towing operations. Using a genuine OEM control unit ensures compatibility with other vehicle electronics and maintains the intended safety features for towing.