Fitment

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

• Audi A4 B9 2.0 TDI
• Audi A5 F5 2.0 TDI
• Audi A6 C8 2.0 TDI
• Audi Q5 FY 2.0 TDI
• Volkswagen Passat B8 2.0 TDI
• Volkswagen Arteon 2.0 TDI
• Skoda Superb 3 2.0 TDI
• Seat Exeo successor platform models using EA288 diesel SCR systems

OE reference
8W0907807S 0281007859 0281007860

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 sensor inlet or outlet type

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

Are all 8W0907807S sensors interchangeable

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

What system does it work with

SCR Selective Catalytic Reduction system using AdBlue injection for Euro 6 emissions compliance

What are common failure symptoms

Engine warning light SCR AdBlue system fault limp mode and NOx sensor related error codes