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
• Some Mercedes-Benz Euro 5 / Euro 6 commercial diesel platforms
  Using reference numbers:
• A0111536328 / A 011 153 63 28
• SNS3044
• 5WK96790B (Continental/Bosch sensor family cross-reference depending on version)

This sensor is widely used in SCR exhaust aftertreatment systems to ensure emissions compliance and AdBlue dosing accuracy.

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

Q2: Where is it installed?
A2: It is installed in the SCR exhaust system, typically before or after the catalytic converter depending on vehicle configuration.

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

Q4: Is SNS3044 the same as A0111536328?
A4: Yes, SNS3044 is the sensor model designation and A0111536328 is the Mercedes-Benz OEM part number for the same SCR NOx sensor unit.