Genuine OEM Volkswagen Control Unit For Petrol Engine, part number 03C906016HD. This control unit is essential for managing the complex operations of a petrol engine, including fuel injection, ignition timing, and emissions control. It is typically located in the engine bay or under the dashboard. The unit weighs approximately 0.732 kg and has dimensions of 0.18m x 0.17m x 0.04m. Genuine OEM electronic control units are critical as they come with the correct firmware and sensor calibration, ensuring reliable and precise engine management.