Audi A5 S5 8T Vacuum Tank Container Reservoir 079131541B

Audi A5 S5 8T Vacuum Tank Container Reservoir is an original vacuum system component from the Vacuum pumps group, designed for Audi A5 and S5 models of the 8T generation. This used reservoir ensures stable vacuum storage, which translates into predictable operation of vacuum-controlled systems in the vehicle.

Specifications and technical data

• SKU: 079131541B
• Mark: Audi
• Condition: Used
• OEM Part Number: 079131541B
• Substitutable numbers: 079131541B, 079 131 541 B
• Category: Vacuum Pumps

Function and role of the vacuum reservoir in the Audi A5 / S5 8T

The vacuum reservoir in an Audi is responsible for vacuum buffering generated by the vacuum system, ensuring it remains available even under varying engine loads. Stable vacuum is crucial for the proper operation of vacuum-controlled components, such as actuators, valves, or specific control modules.

In practice, a functional vacuum reservoir helps maintain:

• repeatable response of vacuum-controlled systems,
• proper cooperation with components from the Vacuum pumps group,
• stability of engine operating parameters under dynamic driving conditions.

Why choose an original Audi vacuum reservoir

The original vacuum reservoir for the Audi A5 / S5 8T ensures factory-fit for the vehicle's vacuum installation. This means correct port geometry, appropriate working capacity, and compatibility with factory mounts and hose routing.

The main advantages of using an original component include:

• maintaining the vacuum system parameters designed by the manufacturer,
• secure seating in factory mounting points,
• reduced risk of leaks resulting from mismatched shapes or port diameters.

Product characteristics and condition

The presented vacuum reservoir is a used part, sourced from an original Audi system. This type of component is most often chosen when replacing a damaged, leaking, or deformed reservoir, where maintaining compliance with the vehicle's factory configuration is a priority.

Using a used OEM component allows for:

• maintaining the consistency of the vacuum system with other components,
• reducing repair costs while preserving the original design,
• easier diagnostics in the future due to predictable system behavior.

Selection by OEM number and system integration

The selection of a vacuum reservoir for the Audi A5 / S5 8T should be based on the OEM part number and interchangeable numbers, which minimizes the risk of installing an incorrect variant. A properly selected component works with the existing vacuum installation without the need for modifying hoses or brackets.

In case of doubt, it is useful to compare the part number with service documentation or the manufacturer's catalog, as well as to visually verify the shape and arrangement of the ports against the removed element.

If you are planning a comprehensive repair or upgrade of the vacuum system area in your Audi and need other elements from the same group, such as a vacuum pump, vacuum hoses, or control valves, check the available parts in the Audi vacuum pumps category.

Operation of vacuum systems and the fuel system

A functional vacuum system supports the stable operation of many systems interacting with the engine, which indirectly affects the refinement and efficiency of the power unit. For a complete picture of diagnostics and service, it is worth familiarizing yourself with issues related to fuel supply – injectors, pumps, and the fuel tank. Extended information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses selecting parts by OEM numbers, regeneration methods, and practical operational tips.