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 commercial Euro 5 / Euro 6 diesel platforms
  Using reference numbers:
• A2C16506900-01
• 5WK97319
• SNS3042 (sensor family designation)

This NOx sensor is used in SCR exhaust aftertreatment systems to measure emissions and regulate AdBlue dosing.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide (NOx) levels in the exhaust and sends 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 warnings, NOx sensor fault codes, reduced engine performance, or limp mode activation.

Q4: Is 5WK97319 the same as A2C16506900-01?
A4: Yes, A2C16506900-01 is the OEM/reference number and 5WK97319 is the sensor manufacturer code for the same NOx sensor unit.