Genuine OEM Audi Electronic Control Unit, part number 420907376A. This unit is responsible for managing the electronically adjustable damping system, ensuring optimal suspension performance and ride comfort. It is typically located within the vehicle's chassis or under the dashboard. The unit has dimensions of 0.21m x 0.122m x 0.04m and weighs 0.728 kg. Genuine OEM electronic control units are critical for ensuring the correct firmware, sensor calibration, and signal characteristics required for precise system operation.