Genuine OEM Audi Engine Control Unit, part number 424910560D. This unit is the brain of the engine, responsible for managing fuel injection, ignition timing, and other critical functions to ensure optimal performance and emissions. It is typically located in the engine bay. The unit has dimensions of 0.185m x 0.17m x 0.04m and weighs 0.756kg. Genuine OEM engine control units are essential for precise calibration and factory-tested reliability, ensuring the engine operates as designed.