Fitment (Market-Validated Usage)

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

Common system applications include:

• Volkswagen Passat B8 2.0 TDI (EA288 diesel)
• Volkswagen Arteon 2.0 TDI (EA288 diesel)
• Škoda Superb III 2.0 TDI (EA288 diesel)
• SCR (AdBlue) Euro 6 diesel emission systems

Fitment is strictly based on OE number matching: 04L907807ED

OE cross-reference data confirms this part is part of the EA288 SCR NOx sensor family used across VW Group MQB diesel platforms.

Technical Description

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

It is part of the SCR (Selective Catalytic Reduction) system and regulates AdBlue dosing to reduce emissions and maintain Euro 6 compliance.

The sensor is an integrated electronic module designed for high-temperature exhaust environments with continuous monitoring capability.

Symptoms / Fault Codes

Common symptoms of failure include:

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

OE / Part Numbers

• 04L907807ED
• 04L 907 807 ED (format variant)
• Related EA288 NOx sensor family: 04L907807ER / 04L907807AL

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (ED / ER / AL variants) can indicate different calibration or sensor position (upstream/downstream).

Why is only “Volkswagen” shown in the title?

Because only confirmed brand-level association is used. No model-level assumptions are included to avoid incorrect fitment claims.

Can similar OE numbers be used instead?

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

Why do multiple brands share this part?

Because Volkswagen Group (VW / Audi / Škoda / SEAT) uses a shared EA288 diesel SCR architecture.