FITMENT
Compatible with Mercedes-Benz heavy-duty 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 Arocs
• Mercedes-Benz Antos
• Mercedes-Benz Atego
• Selected Mercedes-Benz commercial trucks and buses with SCR systems
  Using reference numbers:
• A0111537228
• A0081539928 / 0081539928
• 6PN358186731
• SNS1024 (sensor family designation)

Used in SCR exhaust aftertreatment systems to monitor NOx levels and control 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 system 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 power, or limp mode activation.

Q4: Are SNS1024 and SNS1025 interchangeable?
A4: They are part of the same Mercedes SCR NOx sensor family, but exact compatibility depends on engine model, ECU calibration, and emission configuration.