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 T Roc 2.0 TDI
• Audi A3 8V 2.0 TDI
• Audi Q2 2.0 TDI
• Audi A4 B9 2.0 TDI (selected SCR versions)
• Audi A5 2.0 TDI (selected SCR versions)
• 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
04L907805DG
0281007750
0281007751

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

Are all 04L907805DG sensors interchangeable

No different suffix versions are ECU coded and must match exact calibration and vehicle configuration

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 AdBlue fault SCR system error limp mode reduced power and NOx sensor communication fault