Audi S3 8V 2.0 TFSI Exhaust Control Line Differential Pressure Sensor 057906051B

Audi S3 8V 2.0 TFSI Exhaust Control Line Differential Pressure Sensor is a component from the Lambda probes and O2 sensors group, responsible for the precise measurement of pressure differences in the exhaust system. A properly functioning sensor supports the stable operation of the 2.0 TFSI unit, facilitates the maintenance of correct combustion parameters, and helps reduce the risk of error codes being stored in the engine control unit. This is a solution for users who expect a proven component with factory performance characteristics.

Specifications and technical data

• SKU: 057906051B
• Mark: Audi
• Condition: Used
• OEM Part Number: 057906051B
• Substitutable numbers: 057906051B, 057 906 051 B, 06L 131 551 D, 06L131551D
• Category: Oxygen Sensors

Function and role of the differential pressure sensor in the Audi S3 8V 2.0 TFSI

The presented sensor is responsible for monitoring the pressure difference in the exhaust stream, which allows the engine control unit to continuously correct the fuel dosage and the operating strategy of the 2.0 TFSI unit. As a result, the exhaust system maintains the correct flow characteristics, and the engine can operate under stable conditions with a reduced risk of entering limp mode.

A functional differential pressure sensor is particularly important in vehicles driven dynamically, where the exhaust system is exposed to variable loads. Replacing a worn-out element with an original component from the same group allows for the restoration of correct readings and facilitates the diagnostics of potential faults related to the exhaust area.

Benefits of using an original Audi sensor

Using a sensor dedicated to the Audi S3 8V 2.0 TFSI ensures:

• preservation of the factory characteristics for measuring pressure differences in the exhaust system,
• better compatibility with engine control unit software,
• reduced risk of errors related to incorrect pressure readings,
• easier data interpretation during computer diagnostics.

For the user, this means more predictable engine behavior and the ability to detect potential problems in the exhaust area more quickly. Choosing a component from the Lambda probes and O2 sensors group dedicated to Audi allows for maintaining the consistency of the entire measurement system.

Product characteristics and fitment

The offered sensor is designed for use in the exhaust system of the Audi S3 8V generation with a 2.0 TFSI engine. The component's design is prepared for integration with factory engine equipment, which facilitates installation and limits the need for system modifications. Consequently, replacing a worn-out sensor with the presented item can be carried out in an orderly manner, maintaining the original routing of wires and connectors.

The product comes from the Audi brand and is classified as used, which allows for an economical restoration of the measurement system's efficiency while maintaining the factory part specifications. This is a solution for those who prefer original components over replacements with uncertain characteristics.

What to look for when choosing a used engine electronics sensor

When selecting a used differential pressure sensor, it is worth paying attention to compatibility with the specific engine version and consistency with other control electronics. It is essential that the sensor comes from the same family of technical solutions as the originally installed element, which minimizes the risk of communication problems with the control unit.

If you would like to learn more about selecting used electronics, including sensors, engine control units, and comfort modules, the blog article The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors? will be helpful, as it contains practical tips on the safe selection of such components.

Related items from the Audi Lambda probes and O2 sensors group

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