FITMENT
Compatible with PSA Group diesel vehicles (Citroën / Peugeot) equipped with SCR (Selective Catalytic Reduction) AdBlue emission systems requiring NOx monitoring.
Common applications include Euro 5 / Euro 6 diesel platforms using PSA aftertreatment systems.
Using reference numbers:

• 9678570780
• 5WK96746 (Continental/Bosch sensor family)

Typically used in SCR exhaust systems to ensure correct AdBlue dosing and 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 data to the ECU to control AdBlue/DEF injection and reduce emissions.

Q2: Where is it installed?
A2: It is installed in the exhaust aftertreatment system, usually before or after the SCR catalytic converter depending on model.

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: Is 9678570780 the same as 5WK96746?
A4: Yes, 9678570780 is the PSA OEM number and 5WK96746 is the sensor manufacturer reference used for the same SCR NOx sensor unit.