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

• Mercedes-Benz Actros (Euro 6 variants)
• Mercedes-Benz Antos
• Mercedes-Benz Arocs
• Mercedes-Benz Atego (new generation)
  Using reference numbers:
• A0111537328
• 0101539528 / A0101539528
• 6PN358186721
• SNS1025 (sensor family designation)

This sensor is used in SCR exhaust aftertreatment systems to monitor NOx levels and ensure correct AdBlue dosing for emissions compliance.

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, usually 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: Are A0111537328 and 0101539528 interchangeable?
A4: Yes, they are OEM cross-references used within the same Mercedes SCR NOx sensor system platform.