Fitment
Compatible with Euro 6 diesel emission systems

Vehicle applications include:
Peugeot 2008
Citroën C3
Peugeot 208
Citroën C3 Aircross
Other PSA Group vehicles using part number 9821120980

FAQ

Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide concentration in diesel exhaust and supports SCR system control for AdBlue dosing and emission reduction.

Q2: Where is this sensor installed?
A2: It is installed in the exhaust aftertreatment system, typically before or after the SCR catalyst depending on configuration.

Q3: Is part number matching required?
A3: Yes, exact OEM part number 9821120980 is required for correct compatibility.

Q4: Are Peugeot 2008 and Citroën C3 using the same sensor?
A4: Yes, many PSA BlueHDi platforms share the same SCR emission components.

Q5: What are common failure symptoms?
A5: Engine warning light, AdBlue system faults, NOx sensor error codes, or reduced engine performance mode.