Audi A3 8V Air Conditioning A/C Air Con Pipe Hose Line 6R2820741C

Audi A3 8V Air Conditioning A/C Air Con Pipe Hose Line is an original A/C system component designed for the precise transport of refrigerant between system sub-assemblies. Thanks to its factory geometry and perfect fit for the VAG group platform, it ensures stable operating pressure and system tightness, which translates into efficient and comfortable air conditioning performance in your Audi.

Specifications and technical data

• SKU: RHD-5Q2816738B-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q2816738B
• Substitutable numbers: 5Q2816738B, 5Q2 816 738 B
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

The offered pipe belongs to the Air conditioning pipes, hoses, and connectors group, responsible for the safe routing of refrigerant between the compressor, condenser, evaporator, and receiver-drier. A properly selected A/C line minimizes pressure drops, reduces the risk of cavitation, and supports the stable operation of expansion valves and pressure sensors.

The component was designed specifically for Audi vehicles, which means it maintains the correct internal diameter, length, and bend shapes, ensuring proper routing in the engine bay without interference with other components.

Construction and key technical features

The Audi A3 8V Air Conditioning A/C Air Con Pipe Hose Line utilizes a combination of flexible and rigid sections typical of OEM solutions, which allows for compensating engine vibrations while maintaining stable line routing at critical points of the chassis. The used ends and connectors are factory-matched to the A/C system sockets, allowing for installation without modifications or additional adapters.

The most important design advantages include:

• factory connectors adapted for operation under high air conditioning system operating pressure,
• properly selected rigidity of metal sections to reduce pipe vibrations,
• flexible segments compensating for powertrain and chassis movements,
• geometry matched to the original mounting points in the Audi A3 8V.

Benefits of using an original Audi pipe

Using an original A/C pipe in an Audi allows you to maintain the system operating parameters specified by the manufacturer. In practice, this means:

• stable cooling performance under high thermal loads,
• reduced risk of leaks at connections due to proper sockets and diameters,
• no need for system modifications during installation,
• easier diagnostics and service in the future, as the system retains its factory configuration.

This solution is particularly recommended for professional air conditioning system repairs when you want to ensure compliance with service documentation and factory parameters.

Condition, origin, and service application

The component comes from an Audi vehicle disassembly and is offered as a used part, which provides a favorable compromise between repair costs and maintaining original build quality. This type of component is often chosen by workshops specializing in the Audi brand and by conscious users who prefer factory solutions over replacements of unknown origin.

The pipe will work well both for standard replacement of a damaged A/C line and for comprehensive system rebuilding after a compressor failure or leak. After correct installation, leak testing, and refilling with refrigerant, it allows for the restoration of full air conditioning functionality.

Expanding the Audi air conditioning system

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

If you are considering wider use of premium-class used components in your car and want to learn about the advantages of using original parts from disassembly, read the article Used parts for Mercedes – original parts from disassembly, which discusses the practical aspects of such a solution in premium segment vehicles.