Audi Q2 GA Exhaust Gas Pressure Sensor 1.6 TDI DGTE 04L906051J

Audi Q2 GA Exhaust Gas Pressure Sensor 1.6 TDI DGTE is a component from the Lambda sensors and O2 sensors group, designed for precise monitoring of exhaust gas parameters within the exhaust system. A properly selected sensor supports the stable operation of the 1.6 TDI unit, facilitates the maintenance of correct engine control unit settings, and helps reduce the risk of emission-related errors.

Specifications and technical data

• SKU: 04L906051J
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L906051J
• Substitutable numbers: 04L906051J, 04L 906 051 J, 0261230564, 0 261 230 564
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The offered exhaust gas pressure sensor works with the 1.6 TDI diesel engine in the Audi Q2 GA model, controlling operating conditions within the exhaust system area. A properly functioning component of this type allows the engine control unit to continuously correct fuel dosage, manage diesel particulate filter regeneration procedures, and maintain stable engine operating parameters.

Thanks to accurate exhaust pressure readings, the controller can react faster to load changes, which translates into more consistent performance, reduced smoke emissions, and compliance with established emission levels. In practice, a functional sensor helps reduce the risk of the engine entering limp mode and facilitates the diagnosis of potential faults in the exhaust area.

Benefits of using an original Audi component

The component comes from the Audi line, which ensures the preservation of factory operating characteristics and compatibility with the electrical installation and control system in the Audi Q2 GA with the 1.6 TDI DGTE unit. Using an original solution allows you to avoid problems typical of aftermarket replacements, such as unstable readings, calibration errors, or the need for additional wiring modifications.

The product has an assigned OEM part number and associated replacement numbers, which facilitates clear identification in service catalogs and diagnostic programs. This makes selecting the sensor for a specific vehicle configuration simpler, and the risk of installing an incorrect component is significantly reduced.

Condition, verification, and service application

The offered sensor is in used condition, which allows for economical vehicle repair while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial when addressing operational faults, where the priority is to reduce service costs while maintaining compatibility with the factory control system.

In practice, the exhaust gas pressure sensor can be used both as a replacement element in the event of a failure and during broader work on the exhaust system, including diagnosing problems with the diesel particulate filter, excessive smoke, or recurring errors related to system pressure.

Integration with vehicle electronics and selection of used electronics

Due to its close cooperation with the engine control electronics, the correct selection of the exhaust gas pressure sensor has a direct impact on ECU stability and the accuracy of error memory logs. If you are planning a broader replacement of electronic components in your vehicle, it is worth checking out advice on selecting used components – practical tips can be found in the article A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Related components from the same group

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