Genuine OEM Volkswagen Sunlight Sensor, part number 1K0907539D. This sensor is crucial for detecting ambient light conditions, enabling automatic headlight activation and climate control adjustments. It typically mounts on the dashboard or near the windshield. Weighing 0.026 kg and measuring 0.08m long, this sensor provides precise data. Opting for a genuine OEM sensor ensures accurate calibration and reliable performance, critical for safety and comfort systems.