Genuine OEM Volkswagen Control Unit, part number 03C906027CT5K0. This is an engine control module that manages various engine functions. Its precise calibration ensures optimal performance and emissions. The unit is approximately 0.182m long, 0.167m wide, and 0.04m high, weighing 0.644kg. Genuine OEM control units are critical for correct engine operation as they contain specific firmware and sensor calibration required for the vehicle's systems.