Genuine OEM Volkswagen Control Unit, part number 03C906016HJ. This electronic control module is responsible for managing various engine parameters and functions. It is typically located within the engine bay. The unit has dimensions of 0.18m x 0.17m x 0.04m and weighs 0.732kg. Genuine OEM parts are crucial for control units as they ensure correct firmware and sensor calibration, guaranteeing reliable engine operation.