Fitment (Market-Validated Usage)

Based on OE catalog cross-reference + aftermarket listing aggregation, this NOx sensor is used in Volkswagen Group MLB Evo / MQB EVO diesel SCR (AdBlue) systems on newer platform vehicles.

Common system applications include:

• Audi A4 / A5 / Q5 (B9 / FY platforms diesel variants)
• Audi A6 / A7 (C8 diesel variants)
• Volkswagen Arteon 2.0 TDI (EA288 EVO diesel)
• Volkswagen Passat B8 facelift (EVO diesel variants)
• Škoda Superb III facelift 2.0 TDI EVO
• SCR (AdBlue) Euro 6 / Euro 6d diesel emission systems

Fitment is strictly based on OE number matching: 80A907807S

OE cross-reference data confirms this is a shared Volkswagen Group NOx sensor used across multiple VAG brands under EA288 EVO / MLB EVO diesel architecture.

Technical Description

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

It is part of the SCR (Selective Catalytic Reduction) system, which uses AdBlue injection to reduce NOx emissions and ensure compliance with modern Euro emissions standards.

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

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

• 80A907807S
• 80A 907 807 S (format variant)
• Superseded / related family: 80A907807N / 8W0907807 series (platform-dependent revisions)

FAQ

Is this sensor vehicle-specific?

Yes. NOx sensors must match the exact OE number. Even small suffix differences (S / N / B variants) can indicate different calibration or configuration.

Why do multiple Audi / VW / Skoda models appear in fitment?

Because Volkswagen Group shares this component across multiple brands under EA288 EVO / MLB EVO diesel SCR architecture.

Can similar OE numbers be used instead?

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