Genuine OEM Volkswagen Sun Light Sensor, part number 5NA907451E. This photosensor is designed to accurately detect ambient light conditions, providing critical input for automatic headlight activation, dashboard illumination, and climate control systems. It is typically located on the dashboard, facing the windshield. Weighing approximately 0.011 kg, this sensor ensures precise and reliable environmental readings. Using a genuine OEM sensor guarantees correct calibration and signal characteristics, which are vital for the proper functioning of interconnected vehicle systems.