Fitment

Fits for:

• Mercedes-Benz C-Class (W205 diesel SCR applications)
• Mercedes-Benz E-Class (W212 / W213 diesel Euro 6 models)
• Mercedes-Benz GLC / GLE diesel variants with SCR (AdBlue system)
• Mercedes-Benz S-Class diesel BlueTEC (selected configurations)
• Mercedes-Benz Sprinter / Vito diesel SCR systems (market dependent)
• Engine: OM651 / OM654 / OM642 diesel engines with SCR emissions system
• Position: Exhaust NOx sensor (inlet or outlet depending on SCR layout)
• OE / Cross References: A0009052790 / 0009052790 / A0009053403 / A0009056204 / SNS381 series family / 5WK9-type NOx sensor platform

FAQ

Q1: Is A0009052790 a NOx sensor?
A1: Yes. A0009052790 is a Mercedes-Benz NOx sensor used in SCR (AdBlue) diesel emissions systems to measure nitrogen oxide levels in exhaust gas and support emissions control.

Q2: What vehicles use this sensor?
A2: It is commonly used on Mercedes diesel vehicles such as C-Class, E-Class, GLC, GLE, and Sprinter/Vito models equipped with Euro 6 SCR systems.

Q3: Is this inlet or outlet sensor?
A3: It can be used as either upstream (inlet) or downstream (outlet) NOx sensor depending on the exhaust system configuration. Many Mercedes SCR systems use multiple identical sensors in different positions.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) concentration in exhaust gases and sends data to the ECU, which controls AdBlue dosing to reduce emissions and maintain SCR efficiency.