Genuine OEM Volkswagen Headlight Level Sensor, part number 5Q0512521H. This sensor detects the vehicle's ride height, providing crucial input to the automatic headlight leveling system to maintain proper beam aim. It is specifically designed for the front left position. Weighing 0.181 kg, this sensor is built to precise factory specifications. Choosing a genuine OEM sensor ensures accurate calibration and reliable signal characteristics for consistent headlight performance and road illumination.