A0009052719 Nitrogen Oxide NOx Sensor For Mercedes For Benz W222 V222 X222 GLC. Material: The NOx sensor is made of ABS+Metal, which is strong, impact-resistant, not easy to deform, and high-temperature resistant. It is sensitive and reliable to use. Features: The NOx sensor accurately measures the oxygen concentration in the exhaust gas and sends this information back to the engine to control the injection amount. This optimizes consumption and improves economy. Easy to install, old or damaged sensors can be directly replaced with the sensor, get your vehicle back on the road quickly. Before purchasing, please check the photo or part number to see if it matches the old product to ensure this product is suitable for your vehicle, if you have any questions, please feel free to leave us a message.