Audi S8 D3 Quattro 5.2 FSI Secondary Air Pump Valve EGR Valve 079131101AR

Audi S8 D3 Quattro 5.2 FSI Secondary Air Pump Valve EGR Valve is a component from the EGR valves and parts group, designed for the exhaust gas recirculation system in the Audi sports sedan with a 5.2 FSI engine and quattro drive. This solution allows for maintaining the correct operating parameters of the power unit, stable performance, and compliance with factory emission control system standards.

Specifications and technical data

• SKU: 079131101AR
• Mark: Audi
• Condition: Used
• OEM Part Number: 079131101AR
• Substitutable numbers: 079131101AR, 079 131 101 AR
• Category: EGR Parts & Valves

Purpose and function in the EGR system

The presented valve is a part of the exhaust gas recirculation system in the Audi S8 D3 generation with a 5.2 FSI petrol engine and all-wheel drive. It is responsible for the controlled flow of exhaust gases back to the intake manifold, which helps reduce nitrogen oxide emissions, stabilize combustion temperature, and maintain engine performance at the levels intended by the manufacturer.

A properly selected EGR valve in this model contributes to:

• correct cooperation with the factory engine control unit,
• maintaining the proper dynamics and flexibility of the 5.2 FSI unit,
• reducing the risk of errors related to the exhaust emission system.

Benefits of using an original Audi component

Using a valve from the group of original Audi components ensures proper fitment to the intake and exhaust system, as well as compatibility with factory control software. As a result:

• the consistency of engine operating parameters with the manufacturer's design is maintained,
• the risk of problems with EGR adaptation and calibration is reduced,
• predictable engine response is maintained across the full load range.

This solution is particularly important in powerful FSI units, where precise control of the mixture and exhaust gas temperature has a direct impact on component durability and performance stability.

Characteristics of the used component

The offered EGR valve is a component in used condition, which allows for cost-effective repair of the exhaust gas recirculation system while maintaining the original design. This type of part is a good choice in situations where the priority is to reduce service costs while maintaining compliance with factory technical solutions.

Before installation, a standard service procedure is recommended, including checking the seats, hoses, and intake system tightness to fully utilize the potential of the installed valve.

Integration with the 5.2 FSI quattro engine system

In the Audi S8 D3 model with the 5.2 FSI unit and quattro drive, the EGR system works with advanced engine management, temperature sensors, and lambda probes. A suitable valve from this group:

• supports stable mixture values under various load conditions,
• reduces the risk of overheating components exposed to high exhaust temperatures,
• helps maintain the correct operation of OBD diagnostic systems.

Thanks to this, it is possible to maintain the dynamics characteristic of the S8 D3 while meeting emission requirements.

Expanding the EGR system in Audi

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 valves, hoses, or mounting elements, check the available parts in the Audi EGR valves and parts category.

More about the quality of used OEM parts

When choosing an EGR valve for the Audi S8 D3, it is worth paying attention to the origin of the component and its compliance with factory solutions. A broader discussion of the advantages of using original, used components can be found in the article Quality assurance and OEM safety – why are used original car parts the best choice for your car?, which explains how to combine savings with the safety and durability of the powertrain.

For Audi owners interested in a wider use of second-hand components – both in repairs and modifications – the guide Audi on second-hand parts – tuning and repairs without losing quality may also be helpful, describing a practical approach to building an efficient and reliable car based on proven used elements.