Genuine OEM Volkswagen Air Conditioning Pressure Sensor, part number 4N0959126H. This sensor is crucial for monitoring and regulating refrigerant pressure within the vehicle's air conditioning system, ensuring efficient cooling and preventing system damage. It is installed directly into the AC line. Weighing approximately 0.05 kg, this compact sensor provides precise readings. Choosing a genuine OEM sensor guarantees accurate calibration and signal characteristics, which are vital for the proper functioning and longevity of the entire AC system.