Genuine OEM Volkswagen Control Unit, part number 03F906070BD. This control unit is essential for managing the petrol engine's operational parameters, including fuel injection, ignition timing, and emissions control. It is typically located within the engine bay. The unit weighs approximately 0.894 kg and has dimensions of 0.181m x 0.181m x 0.04m. Genuine OEM parts are critical for engine control units to ensure correct firmware and precise sensor calibration for optimal performance and longevity.