Fitment

FCA diesel vehicles with SCR AdBlue Euro 5 Euro 6 emission system including

• Fiat 500X 1.3 / 1.6 Multijet diesel
• Fiat Tipo 1.6 Multijet diesel
• Fiat Doblo 1.6 Multijet diesel
• Jeep Renegade 1.6 Multijet diesel
• Jeep Compass 1.6 Multijet diesel
• Alfa Romeo Giulietta diesel (selected SCR versions)
• Opel / Vauxhall FCA platform diesel SCR vehicles (selected applications)

OE reference
55283640
SNS0922A
A3C00686500-01
46344801

FAQ

What is this NOx sensor used for

It measures nitrogen oxide levels in diesel exhaust gas and sends data to ECU for SCR AdBlue emission control system

Is this inlet or outlet sensor

It is commonly used as upstream NOx sensor before SCR catalyst depending on exhaust system layout

Are all 55283640 sensors interchangeable

No FCA NOx sensors are ECU coded and must match exact OE number and calibration version

What system does it work with

SCR Selective Catalytic Reduction system using AdBlue injection for Euro 5 and Euro 6 diesel emission compliance

What are common failure symptoms

Engine warning light SCR AdBlue fault reduced power limp mode NOx sensor communication error emission efficiency faults