Based on OE catalog cross-reference data, 04L907807DT is used in Volkswagen Group EA288 diesel SCR (AdBlue) systems, mainly 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 III / Ateca diesel variants
• SCR (AdBlue) Euro 6 EA288 diesel emission systems

Fitment is strictly based on OE number matching: 04L907807DT

OE catalog data confirms this part is widely used across VW Group EA288 SCR platforms (multiple brands share the same emissions 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 and controls AdBlue dosing 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

• 04L907807DT
• Related OE family variants: 04L907807AR / 04L907807DE / 04L907807M (platform-dependent revisions)

FAQ

What does this NOx sensor do?

It measures nitrogen oxide levels in diesel exhaust and sends data to the ECU for SCR emission control.

Which vehicles use this part?

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 (DT / DR / DE variants) may indicate different ECU calibration or sensor position.

Can similar NOx sensors be used instead?

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