Volkswagen Distance Sensor (part number 2Q0 907 550 B). It is a radar sensor used for advanced driver assistance systems, such as Adaptive Cruise Control (ACC) and Front Assist. The sensor helps the vehicle monitor the distance to the car in front and can initiate automatic emergency braking to mitigate collisions. It is manufactured by ADC Automotive Distance Control Systems GmbH in Germany. Electronic components like this often require specific programming after installation.
