Genuine OEM Volkswagen Control Unit, part number 03H906023BD350. This control unit is essential for managing the operational parameters of the petrol engine. It is located within the engine bay assembly. This unit weighs approximately 0.892 kg and has dimensions of 0.205m x 0.18m x 0.04m. Genuine OEM control units are critical for ensuring the correct firmware and sensor calibration, which directly impacts engine performance and longevity.