Fitment

Based on OEM catalog cross-reference data, 04L907805BG is used in Volkswagen Group diesel SCR (AdBlue) emission systems on MQB / EA288 platform vehicles.

Common applications include:

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

Fitment is strictly based on OE number matching: 04L907805BG

OE listings confirm this part is a Continental-manufactured NOx sensor used in VAG EA288 diesel exhaust aftertreatment systems.

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 meet Euro 6 standards.

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

Symptoms / Fault Codes

Common symptoms of failure may include:

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

OE / Part Numbers

• 04L907805BG
• Continental OEM reference (EA288 NOx sensor family)

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 on Volkswagen Passat B8, Škoda Superb III, and Volkswagen Arteon diesel models equipped with EA288 2.0 TDI engines.

Is this sensor vehicle-specific?

Yes. It is strictly matched by OE number. Even small suffix differences (BG / AP / AL etc.) can 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.