Genuine OEM Volkswagen Control Unit, part number 04B906027AN. This control unit manages diesel engine functions. It is a critical component for the engine's operational parameters. The unit has dimensions of 0.185m x 0.18m x 0.04m and weighs 0.763kg. The precise calibration and firmware of genuine OEM control units are essential for maintaining the engine's intended performance, emissions, and longevity.