Audi A6 C7 4.0 Petrol Carbon Fuel Filter Connecting Pipe Hose Line 079133986AA

Audi A6 C7 4.0 Petrol Carbon Fuel Filter Connecting Pipe Hose Line is an original fuel system component designed for 4.0 petrol engines in the Audi A6 C7 model. It ensures a stable, leak-proof connection between the filter and other fuel system components, which translates into safe engine operation and predictable fuel supply parameters. This is a solution for users looking for parts with factory geometry and fitment, allowing for efficient installation without any modifications.

Specifications and technical data

• SKU: 079133986AA
• Mark: Audi
• Condition: Used
• OEM Part Number: 079133986AA
• Substitutable numbers: 079133986AA, 079 133 986 AA
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The presented fuel line is a component from the Lines, hoses, and pipes group, responsible for transporting petrol between the filter and the rest of the system. In a 4.0 petrol engine, fuel must be delivered at the appropriate pressure and free of contaminants, which is why the tightness and correct cross-section of the line have a direct impact on:

• fuel pressure stability throughout the system,
• proper operation of injectors and the pump,
• even combustion of the mixture in the cylinders,
• reducing the risk of leaks and power drops.

By maintaining the factory routing and shape, the line minimizes stress in the installation, which is especially important in high-power units such as the 4.0 petrol engine.

Compatibility with Audi A6 C7 4.0 Petrol

The discussed component was designed for use in the Audi A6 C7 generation with a 4.0 petrol engine. This means that:

• the geometry of the ends is matched to the factory fuel filter connectors and other components,
• the length and diameter of the line meet the requirements of the fuel supply system in this model,
• there is no need to use adapters or modify the installation.

Such fitment facilitates installation and reduces the risk of service errors, which is particularly important in modern petrol units with high thermal and pressure loads.

Technical and operational characteristics

The fuel line for the Audi A6 C7 4.0 Petrol operates in a petrol environment, which is why it is made of materials resistant to fuels and typical engine bay temperatures. The design of the line is engineered to:

• maintain proper flexibility while being resistant to kinking,
• maintain connection tightness under varying operating conditions,
• reduce the transmission of vibrations from the engine to the fuel system.

Thanks to this, the component can be used both as a replacement part during standard maintenance and during repairs related to the fuel system, where stable and predictable fuel flow characteristics are required.

Component condition and service application

The fuel line is offered as a used part, which allows for an economical repair of the fuel system while maintaining the manufacturer's original specifications. This type of component is suitable in situations where:

• the existing line has suffered mechanical damage or surface corrosion,
• there are leakage problems in the area of the fuel filter,
• it is necessary to replace the element after interference with the fuel system.

Using an original line instead of a worn-out replacement allows for restoring the correct installation routing and reducing the risk of recurring faults related to leaks or improper line positioning.

Support with selection and system expansion

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other elements from the same group, such as additional lines, flexible hoses, or rigid supply pipes, check the available parts in the Audi lines, hoses, and pipes category.

To better understand the relationships between fuel lines, injectors, pumps, and the tank, as well as to learn the principles of diagnostics and regeneration, it is worth reading the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps to consciously plan service work in petrol-powered vehicles.