FITMENT
Compatible with Mercedes-Benz heavy-duty trucks equipped with SCR (Selective Catalytic Reduction) AdBlue emission systems requiring NOx monitoring.
Common applications include:

• Mercedes-Benz Actros MP4 / MP5
• Mercedes-Benz Atego
• Mercedes-Benz Antos
• Other Euro 5 / Euro 6 diesel truck platforms using this sensor family

Using reference numbers:

• SNS3043
• A0111536228 / A 011 153 62 28
• 5WK97104A (Continental/Bosch sensor family cross-reference depending on version)

Installed in SCR exhaust aftertreatment systems for emission control compliance.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide (NOx) levels in the exhaust system and sends real-time data to the ECU to control AdBlue/DEF dosing and reduce emissions.

Q2: Where is it installed?
A2: It is installed in the exhaust aftertreatment system, usually after or before the SCR catalyst depending on configuration.

Q3: What are symptoms of failure?
A3: Check engine light, SCR/AdBlue warnings, NOx sensor fault codes, reduced engine performance, or limp mode activation.

Q4: Is SNS3043 the same as A0111536228?
A4: Yes, SNS3043 is the sensor model designation and A0111536228 is the Mercedes OEM number used for the same SCR NOx sensor system.