Genuine OEM Volkswagen Electronic Control Unit, part number 09G927750LC. This unit is responsible for managing the functions of the 6-speed automatic transmission, ensuring smooth gear changes and optimal performance. It is typically located within the vehicle's engine bay or under the dashboard. The unit weighs approximately 0.364 kg. Genuine OEM electronic control units are critical for ensuring the correct firmware, sensor calibration, and signal characteristics necessary for the transmission to operate reliably and efficiently.