Audi A6 C7 A7 4G A/C Air Condition Hose Line Tube Pipe 3.0 TDI 4G0816721R

Audi A6 C7 / A7 4G 3.0 TDI Air Conditioning Hose is an original A/C system component from the Air Conditioning Hoses, Pipes, and Connectors group, designed for diesel-powered vehicles. It ensures a sealed and stable connection in the refrigerant system, contributing to efficient air conditioning operation under demanding conditions.

Specifications and technical data

• SKU: 4G0816721R
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0816721R
• Substitutable numbers: 4G0816721R, 4G0 816 721 R
• Fuel type: Diesel
• Part type: Hose
• Category: A/C Hoses & Fittings

Application in Audi A6 C7 and A7 4G 3.0 TDI Models

The offered air conditioning hose has been specifically designed for the A/C systems in Audi A6 C7 generation and Audi A7 4G models with the 3.0 TDI diesel engine. The hose's construction is adapted to the factory routing of the system in the engine bay, which facilitates installation and maintains the original path of the refrigerant lines.

Thanks to the use of an original solution, the air conditioning system maintains correct operating pressures, and the compressor, condenser, and other components operate under stable conditions. This is particularly important in diesel engines, where the temperature in the engine bay is higher, and the thermal loads on the hoses are greater.

Construction and Function of the Air Conditioning Hose

The hose serves as a component for transporting refrigerant between the A/C system's sub-assemblies, ensuring proper sealing and pressure resistance. The materials used and the factory geometry of the connections allow for a secure connection with other air conditioning components, minimizing the risk of leaks and cooling performance drops.

The original design of the hose is adapted to operate in the high-temperature and vibration environment typical of diesel engines, which contributes to the longer lifespan of the entire system. Proper routing of the hose also reduces the risk of rubbing against other components in the engine bay.

Condition, Origin, and Benefits of Choosing a Used Part

This part comes from a dismantled vehicle and is offered as a used Audi air conditioning hose, which significantly reduces repair costs compared to a new OEM part. With the correct installation procedure (including leak testing and proper system filling), such a component can effectively restore the air conditioning functionality of the vehicle.

Choosing an original hose from the aftermarket is particularly beneficial for premium class models, where factory fit and system compatibility are crucial for compressor durability and vehicle user comfort.

Installation and Operational Recommendations

When replacing the air conditioning hose, it is recommended to:

• check the condition of other hoses and connectors in the A/C system,
• replace seals at connection points,
• perform a leak test before filling the system,
• recharge the refrigerant according to the vehicle manufacturer's recommendations.

This approach helps to limit the risk of further system intervention and ensures stable air conditioning operation in the long term.

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

Technical Support and Part Selection

When planning repairs for premium cars, it is advisable to leverage experience with the used parts market. Selecting the right components, including air conditioning parts, allows for optimizing service costs without compromising on quality. You can find more information on the advantages of using original dismantled parts in premium segment cars in the article Used Mercedes Parts – Original Dismantled Parts, the conclusions of which can also be applied to other brands, such as Audi.