Rear Left Suspension Level Sensor fit Audi A5/S5 8T Cabriolet 2010 - 2017 56374593Introduction: Headlight leveling sensors tell cars with self leveling headlights when and how to adjust the lights. When the car goes over a bump, a sensor attached to the rear control arms signals the vehicles computer that the vehicles front end is higher than its lower end. Feature Engineered for durability against harsh road and weather conditions, including water intrusion Direct replacement for a proper fit every time Failure sets off a warning