Genuine OEM Volkswagen Control Unit for Diesel Engine, part number 03L997030C. This electronic control module manages vital engine functions. It is located within the engine bay assembly. This unit has dimensions of 0.205m length, 0.182m width, and 0.04m height, with a weight of 0.91 kg. Genuine OEM control units are essential for correct firmware and sensor calibration, ensuring reliable engine operation and compliance with emissions standards.