Audi Rs4 8K RS5 8F 8T Air Conditioning A/C Hose Petrol Line 4.2 FSI 8K0260705B

Audi Rs4 8K RS5 8F 8T Air Conditioning A/C Hose Petrol Line is an original cabin cooling system component designed for vehicles with the 4.2 FSI petrol engine. This used hose from the Air conditioning hoses, lines and connectors group allows for a technically correct repair or restoration of the factory air conditioning installation in Audi RS4 and RS5 sports models. It is a solution for users who expect compliance with factory specifications and stable air conditioning system performance.

Specifications and technical data

• SKU: 8K0260705B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0260705B
• Substitutable numbers: 8K0260705B, 8K0 260 705 B
• Fuel type: Petrol
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

The air conditioning hose in RS4 8K and RS5 8F / 8T models is responsible for the tight and safe routing of refrigerant between system components, such as the compressor, condenser, or evaporator. A properly selected component ensures:

• maintenance of the correct refrigerant pressure in the system,
• stable operation of the compressor and other components,
• efficient cabin cooling under various thermal loads,
• reduction of the risk of leaks and loss of air conditioning efficiency.

Thanks to its compatibility with the 4.2 FSI petrol unit, the hose works with the air conditioning system operating parameters characteristic of these models, which translates into predictable behavior of the entire system.

Compatibility with Audi RS4 and RS5 models

The component has been designed for the sports versions of the Audi RS4 8K generation and the Audi RS5 8F and 8T series, which means it is compatible with the factory installation routing in the engine bay and chassis. The proper shaping of the hose, the placement of connectors, and the operating diameters are adapted to:

• the geometry of the V8 4.2 FSI engine bay,
• original brackets and mounts in the bodywork,
• factory Audi air conditioning connectors.

Such a design facilitates installation and allows for maintaining the original routing of the installation, which is important both for durability and for subsequent maintenance.

Technical characteristics and installation

The hose belongs to the Air conditioning hoses, lines and connectors group, which means it has been made of materials adapted to work with refrigerant and compressor oil, under increased pressure and variable temperatures. In practice, this translates into:

• resistance to temperature fluctuations in the engine bay,
• maintaining tightness at typical operating pressures,
• compatibility with factory service connectors.

During installation, it is recommended to use new seals and perform a system leak test after filling with refrigerant. Thanks to maintaining the original geometry of the hose, installation work is predictable, and the risk of stress on the connectors is minimized.

Component condition and use in repairs

The offered air conditioning hose is a used component, which allows for an economical repair of the system while maintaining the manufacturer's original specifications. This type of part is particularly useful in situations where:

• mechanical damage to the hose has occurred (e.g., corrosion, impact, abrasion),
• it is necessary to replace a part of the installation after a collision,
• you want to restore full air conditioning efficiency after the vehicle has been stationary for a long time.

Selecting an original hose for a specific engine version reduces the risk of fitment issues and minimizes the need for installation modifications.

System safety and service knowledge

A functional air conditioning hose has a direct impact on the service life of the compressor and the overall tightness of the system. Before installation, it is worth familiarizing yourself with the principles of diagnostics and replacement of air conditioning components – practical tips can be found in the article Air conditioning compressor – symptoms of failure, causes and safe replacement, which discusses typical compressor problems and the importance of proper system service.

If you are planning a comprehensive repair or upgrade of the air conditioning area in your Audi and need other components from the same group, such as additional lines, flexible hoses, or service connectors, check the available parts in the Audi air conditioning hoses, lines and connectors category.