A0009050108 A 000 905 01 08 Nitrogen Oxygen NOx Sensor For Mercedes For Benz W205 W164 W253 W213 W238 X166. Function: NOX sensor is used to detect the nitrogen oxide content in the engine exhaust to optimize exhaust emissions and improve fuel economy. NOx sensor is small, light and shockproof, NOx sensor is highly sensitive, fast responding, safe and reliable to use. Material: NOx sensor is made of metal material, which is wear-resistant, durable and can be used for a long time. Good quality can not only provide safer protection for your life, but also the material can extend the life of the product. NOx sensor: Made of materials and craftsmanship, and after multiple professional tests, it is a replacement part that can help you solve your vehicle problems PROFESSIONAL PRODUCT: Each nox sensor probe is professionally manufactured and has undergone extensive quality testing, so you can buy with confidence.