Fitment

Volkswagen Audi Skoda Seat 2.0 TDI Euro 6 SCR diesel vehicles including

• Volkswagen Tiguan 2.0 TDI
• Volkswagen Passat B8 2.0 TDI
• Volkswagen Golf 7 / Golf 7.5 2.0 TDI
• Volkswagen Arteon 2.0 TDI
• Audi Q3 2.0 TDI
• Audi A3 2.0 TDI
• Audi A4 B9 2.0 TDI (selected SCR versions)
• Audi A5 2.0 TDI (selected SCR versions)
• Skoda Octavia 3 / 4 2.0 TDI
• Skoda Superb 3 2.0 TDI
• Seat Leon 2.0 TDI
• Seat Ateca 2.0 TDI

OE reference
04L907805FF
0281007813
0281007814

FAQ

What is this NOx sensor used for

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

Is this inlet or outlet sensor

It can be installed as inlet or outlet depending on SCR system layout and vehicle configuration

Are all 04L907805FF sensors interchangeable

No VW Group 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 6 diesel emission compliance

What are common failure symptoms

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