Genuine OEM Audi Rear Left Headlight Height Level Sensor, part number 1K0941273M. This sensor detects and reports the vehicle's rear left ride height, allowing the automatic headlight leveling system to adjust the headlight beam pattern. This ensures optimal visibility and prevents dazzling oncoming drivers. It is located on the rear left side of the vehicle. Weighing approximately 0.181 kg, this sensor provides precise readings. Choosing genuine OEM ensures exact calibration and signal characteristics, critical for the accurate and safe operation of the vehicle's lighting system.