Fitment

Based on OE catalog cross-reference data, 04L907807L is used in Volkswagen Group EA288 diesel SCR (AdBlue) systems on MQB platform vehicles.

Common applications include:

• Volkswagen Golf VII (5G) 2.0 TDI
• Volkswagen Passat B8 2.0 TDI
• Volkswagen Tiguan (AD1) 2.0 TDI
• Škoda Octavia III (5E) 2.0 TDI
• Škoda Superb III (3V) 2.0 TDI
• SEAT Leon / Ateca 2.0 TDI diesel variants
• SCR (AdBlue) Euro 6 diesel emission systems

Fitment is strictly based on OE number matching: 04L907807L

OE catalog data confirms this part is widely used across VW Group EA288 SCR platforms (Audi / VW / Skoda / SEAT share the same system architecture).

Technical Description

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

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

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

Symptoms / Fault Codes

Common symptoms of failure include:

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

OE / Part Numbers

• 04L907807L
• Related OE family variants: 04L907805 series / 04L907807DT / 04L907805S (platform-dependent revisions)

FAQ

What vehicles use this NOx sensor?

It is commonly used across VW Group EA288 diesel platforms such as Golf 7, Passat B8, Tiguan, Octavia III, and Superb III depending on engine configuration.

Is this sensor vehicle-specific?

Yes. It is strictly matched by OE number. Even small suffix differences (L / DT / S / AE variants) may indicate different ECU calibration or sensor position (upstream/downstream).

Why are there so many similar OE numbers?

Because VW Group frequently updates NOx sensor hardware/software while keeping the same platform, resulting in multiple superseded part numbers for similar applications.