Genuine OEM Volkswagen Engine Control Unit, part number 0EA906016F. This Engine Control Unit (ECU) is the central computer that manages and controls various engine operations, including fuel injection, ignition timing, and emissions. It is a vital component for optimal engine performance, fuel efficiency, and emissions control. The ECU is precisely calibrated and programmed by the manufacturer. Genuine OEM ECUs ensure correct firmware, sensor compatibility, and reliable engine management.