Genuine OEM Volkswagen Control Unit, part number 04L906026FA5GP. This engine control module manages various diesel engine functions, including fuel injection, ignition timing, and emissions control. It is a critical component for maintaining optimal engine performance and compliance with emission standards. The precise calibration and integration of this unit are essential for the reliable operation of the diesel powertrain. Genuine OEM parts ensure the correct firmware and sensor calibration for seamless integration and long-term durability.