The Audi A4 A5 Q5 B9 ACC Radar Sensor SET from Bosch includes both the left and right sensors, designed to enhance the advanced driver assistance systems in the vehicle. These radar sensors are essential components for improving the safety and efficiency of the vehicle's performance on the road. With the specific part numbers 80A907541D and 80A907561D, these sensors are engineered to fit seamlessly into the Audi models outlined.