Feature:1. OE Number: The referencing OE number of this nox sensor probe are A0009054310, A0009056104, A0009052210, which is molded and designed depend on the original data.2. Fitment: The nitrogen oxide nox sensor is a replacement for ECLASS W212 S212 COUPE CONVERTIBLE W207 C207 A207 CCLASS W204 S204 C204.3. Function: The nox sensor is used to check the nitrogen oxide content of the exhaust to optimize exhaust and fuel economy, which is practical and energy saving.4. Practical: The nitrogen oxide sensor has high precision, fast response, high accuracy, made of metal material which is wear proof, anti aging and impact proof.5. Easy to Install: Stringently manufactured to meet the original standard, good replacement for the old or broken one, improving the time efficiency.Specification:Item Type: Nox SensorOE Numer: A0009054310, A0009056104, A0009052210Material: MetalFitment:Replacement for ECLASS W212 S212 COUPE CONVERTIBLE W207 C207 A207 Replacement for C-CLASS W204 S204 C204Replacement for GLK X204Replacement for R-CLASS W251 C251Replacement for CLS W218 C218 X218(ONLY FOR SIX CYLINDER PETROL VEHICLES V6 M276).Package List:1 xNox SensorNote:Please double check the part number of your item, matching information is for reference only.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!