Volkswagen Passat B8 Skoda Superb Mk3 NOX Oxygen Sensor 2.0 Diesel 04L907805BG

Volkswagen Passat B8 Skoda Superb Mk3 NOX Oxygen Sensor 2.0 Diesel is a component from the Lambda sensors and O2 sensors group, responsible for the precise measurement of nitrogen oxides in the exhaust system of a diesel engine. Thanks to this sensor, the engine control unit can effectively monitor the operation of the exhaust gas treatment system, supporting the stable performance of the 2.0 Diesel unit and maintaining compliance with emission standards.

Specifications and technical data

• SKU: 04L907805BG
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04L907805BG
• Substitutable numbers: 04L907805BG, 04L 907 805 BG, A2C12702700-01, A2C1270270001, 04L 907 807 AM, 04L907807AM
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function of the NOX sensor

The NOX sensor in Volkswagen Passat B8 and Skoda Superb Mk3 models operates in the exhaust stream, monitoring nitrogen oxide content and transmitting data to the engine control unit. Based on this information, the control system can appropriately adjust the fuel dosage, exhaust gas recirculation operation, and emission reduction system, which translates into stable engine performance, reduced smoke, and proper operation of onboard systems.

The element belongs to the Lambda sensors and O2 sensors group, but it is a specialized NOX sensor dedicated to diesel units. Its proper functioning is important not only for emissions but also for protecting exhaust system components, such as the catalytic converter or the diesel particulate filter.

Compatibility and integration with the 2.0 Diesel system

The presented NOX sensor is designed for 2.0 Diesel engines used in the Volkswagen Passat B8 and Skoda Superb Mk3, where it works with the factory engine control unit and the vehicle's original wiring. By maintaining the manufacturer's specifications, proper communication with the car's electronics is possible without the need for installation modifications or mechanical adaptation.

A properly selected NOX sensor helps eliminate typical symptoms of component failure, such as emission warning lights, the engine entering limp mode, or a drop in dynamics. Proper integration with the control system is crucial for maintaining the balance between performance, fuel consumption, and emission levels.

Benefits of using an original NOX sensor

Using an original solution from the Lambda sensors and O2 sensors group in place of a worn or faulty component allows for the restoration of factory exhaust system performance parameters. In practice, this means:

• stable operation of the 2.0 Diesel engine across the full load range,
• proper cooperation with the vehicle's diagnostic systems,
• reduced risk of damage to other exhaust system components,
• maintenance of compliance with exhaust emission requirements.

For the user, this translates into more predictable vehicle behavior, fewer unplanned service visits, and the ability to continue operating the car while maintaining the parameters intended by the manufacturer.

Condition and characteristics of the used product

The offered NOX sensor is a used component, which allows for an economical restoration of the emission system's efficiency while maintaining original specifications. This type of solution is particularly attractive for vehicles used intensively, where a reasonable balance between repair costs and maintaining appropriate technical parameters is important.

Choosing a used NOX sensor with preserved functionality can be a good compromise for drivers who want to avoid the costs of purchasing a new component while expecting proper cooperation with the vehicle's electronics and reliable exhaust parameter readings.

Expansion of the exhaust measurement system and related components

If you are planning a comprehensive repair or upgrade of the exhaust and emission control area in your Volkswagen and need other elements from the same group, such as additional probes, oxygen sensors, or exhaust composition monitoring elements, check the available parts in the Lambda sensors and O2 sensors Volkswagen category.

When selecting a used NOX sensor and other electronic components, it is worth paying attention to compatibility, mounting methods, and integration with the existing installation. Practical tips on choosing and operating used electronic components, such as engine control units or sensors, can be found in the article The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?.

Additional information on how to consciously choose between new and used parts, taking into account costs and durability, is also provided by the guide Car parts – new or used? We compare costs, quality, and durability, which can help in making the optimal service decision for your vehicle.