Genuine OEM Audi Engine Control Unit, part number 8E0910560L. This unit is the central computer for the engine, responsible for managing fuel injection, ignition timing, and other critical functions to ensure optimal performance and emissions. It is typically located within the engine bay. The unit has dimensions of 0.18m x 0.148m x 0.038m and weighs 0.505 kg. Genuine OEM engine control units are essential for maintaining the precise calibration and firmware required for reliable engine operation and factory-specified performance.