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

• Mercedes-Benz Actros
• Mercedes-Benz Axor
• Mercedes-Benz Atego
• Select Mercedes-Benz bus/coaches with SCR systems
  Using reference numbers:
• A0111536128 / A0111535128
• SNS3042 (sensor family designation)

Designed for Euro 5 / Euro 6 diesel exhaust aftertreatment systems.

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 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: Are A0111536128 and A0111535128 interchangeable?
A4: Yes, they are closely related OEM references used within the same Mercedes SCR NOx sensor system family depending on production updates.