Genuine OEM Volkswagen Electronic Control Unit, part number 09G927750PR. This unit is responsible for managing the functions of the 6-speed automatic transmission, ensuring proper gear selection and shifting. It is typically located within the transmission control module assembly. The unit weighs 0.346 kg and has dimensions of 0.155m x 0.155m x 0.04m. Genuine OEM electronic control units are critical for ensuring correct firmware, calibration, and signal characteristics for reliable transmission operation.