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

• Mercedes-Benz Actros (various Euro 5 / Euro 6 diesel variants)
• Mercedes-Benz Axor
• Mercedes-Benz Bus / Coach platforms
  Using reference numbers:
• A0081539928 / A 008 153 99 28
• 5WK9 6652B / 5WK96652B (Continental/Bosch sensor family)

Typically used in exhaust aftertreatment systems for emissions control compliance in heavy-duty vehicles.

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 aftertreatment 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 engine derating (limp mode).

Q4: Is this sensor specific to Actros and Axor?
A4: Yes, it is commonly used on Actros and Axor trucks as well as some Mercedes-Benz bus platforms, but exact compatibility depends on engine and emission setup.