Fitment

Fits for:

• Mercedes-Benz C-Class (W205) diesel models
• Mercedes-Benz E-Class (W212 / W213 early diesel variants depending on engine)
• Mercedes-Benz S-Class (W222 selected diesel SCR applications)
• Mercedes-Benz ML / GLE (W166 diesel SCR systems)
• Engine: OM651 / OM642 diesel engines with SCR (AdBlue) emissions system
• Position: Exhaust NOx sensor (inlet or outlet depending on SCR configuration)
• OE / Cross References: A0009050208 / 0009050208 / A2C13684500-287 / SNS-type NOx sensor family / EA0009050208

FAQ

Q1: Are A0009050208 and A2C13684500-287 the same sensor?
A1: Yes. A0009050208 is the Mercedes-Benz OE number, and A2C13684500-287 is the supplier reference used for the same NOx sensor module in SCR systems.

Q2: What vehicles use this sensor?
A2: It is commonly used on Mercedes-Benz diesel models such as C-Class (W205), E-Class (W212), ML/GLE (W166), and S-Class (W222) equipped with SCR (AdBlue) emissions systems.

Q3: Is this inlet or outlet sensor?
A3: It can be used as either inlet or outlet NOx sensor depending on exhaust system layout. Many Mercedes diesel platforms use the same sensor type in multiple positions.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) levels in the exhaust and sends data to the ECU to control AdBlue dosing, ensuring emissions compliance and SCR efficiency.