The 4H0907355D AD BLUE SENSOR CONTROL UNIT MODULE is a genuine Audi part designed specifically for the Audi A6 C7 2.0 TDI 190 HP model. This module is essential for controlling the Ad Blue system in the vehicle, ensuring optimal performance and efficiency. With its manufacturer part number 4H0907354D, this control unit module is made to fit seamlessly into the vehicle's existing system, providing reliable and accurate control for the Ad Blue system.