Fitment (Market-Validated Usage)

Based on OEM cross-reference catalogs and aftermarket listings, this NOx sensor is used in Volkswagen Group EA288 diesel SCR (AdBlue) systems on MQB platform vehicles.

Common system applications include:

• Volkswagen Golf VII 2.0 TDI (EA288 diesel)
• Volkswagen Passat B8 2.0 TDI (EA288 diesel)
• Volkswagen Tiguan 2.0 TDI (EA288 diesel)
• Škoda Octavia III / Superb III 2.0 TDI
• SEAT Leon / Ateca 2.0 TDI
• SCR (AdBlue) Euro 6 diesel emission systems

Fitment is strictly based on OE number matching: 04L907805AA / 5WK97264A

OE and aftermarket catalog data confirm this sensor is widely used across VW Group EA288 SCR architecture and cross-referenced with Continental/VDO 5WK97264A module listings.

Technical Description

This NOx sensor measures nitrogen oxide (NOx) concentration in diesel exhaust gases and transmits real-time data to the ECU.

It is part of the SCR (Selective Catalytic Reduction) system, which uses AdBlue (urea solution) to reduce NOx emissions and maintain Euro 6 compliance.

The sensor is an integrated electronic module designed for high-temperature exhaust environments and continuous emissions monitoring with CAN communication.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• P2200 / P229F fault codes (system dependent)
• Reduced engine power (limp mode)
• Increased emissions

OE / Part Numbers

• 04L907805AA
• 5WK97264A
• 04L 907 805 AA (format variant)
• Continental/VDO: 5WK97264A

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (AA / AS / BD variants) can change calibration, wiring, or sensor position.

Why do multiple VW Group brands appear in fitment?

Because Volkswagen Group (VW / Audi / Škoda / SEAT) shares the same EA288 diesel SCR architecture across multiple platforms.

Can similar OE numbers be used instead?

Not recommended. These are ECU-calibrated components and must match exact OE specification.