Fitment

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

• Volkswagen Golf 7 2.0 TDI
• Volkswagen Golf 7.5 2.0 TDI
• Volkswagen Passat B8 2.0 TDI
• Volkswagen Tiguan 2.0 TDI
• Volkswagen Arteon 2.0 TDI
• Audi A3 8V 2.0 TDI
• Audi A4 B9 2.0 TDI
• Audi A5 2.0 TDI
• Audi Q2 2.0 TDI
• Audi Q5 FY 2.0 TDI
• Skoda Octavia 3 2.0 TDI
• Skoda Octavia 4 2.0 TDI
• Skoda Superb 3 2.0 TDI
• Seat Leon 2.0 TDI
• Seat Ateca 2.0 TDI

OE reference
04L907805FH
0281007885
0281007884

FAQ

What is this NOx sensor used for

It measures nitrogen oxide levels in diesel exhaust and sends data 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 ECU configuration

Are all 04L907805FH 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