Coolant Pipe Audi A6 C7 S7 4G 4.0 TFSI Water Hose Line 079121070CK

Coolant Pipe Audi A6 C7 S7 4G 4.0 TFSI Water Hose Line is an original cooling system component designed for gasoline engines, specifically engineered for high-end Audi models. Thanks to its factory-spec geometry and precise fitment for the specific powertrain, it ensures stable coolant flow and proper circulation within the engine. This is a practical solution for users looking to restore the efficiency of their cooling system while maintaining manufacturer standards.

Specifications and technical data

• SKU: 079121070CK
• Mark: Audi
• Condition: Used
• OEM Part Number: 079121070CK
• Substitutable numbers: 079121070CK, 079 121 070 CK
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented pipe belongs to the Cooling system pipes and hoses category, responsible for transporting coolant between key engine components. For 4.0 TFSI units in the Audi A6 C7 and S7 4G, a correctly selected cooling hose is essential for:

• maintaining a stable operating temperature of the gasoline engine,
• ensuring adequate coolant flow under high load,
• reducing the risk of localized overheating of aluminum components and seals,
• maintaining the correct operation of accessories integrated with the cooling system.

Using a pipe dedicated to a specific engine configuration helps avoid stress, leaks, and improper routing in the engine bay.

Benefits of using an original Audi pipe

The original Audi coolant pipe has been designed with the demanding operating conditions of a turbocharged gasoline engine in mind. In practice, this means:

• appropriately selected diameter and internal cross-section for proper fluid flow,
• a shape matched to factory routing in the engine bay,
• compatibility with original cooling system connectors and fittings.

As a result, installation is straightforward, and the pipe does not require any additional modifications or adjustments after fitting. This solution is particularly beneficial for servicing vehicles driven dynamically, where thermal stability of the powertrain has a direct impact on engine durability.

Product characteristics and service application

The coolant pipe in this version is a used part, making it an attractive cost-effective alternative to new OEM components while maintaining factory fitment. It is suitable both for standard replacement of worn hoses and for repairs following cooling system failures, such as leaks or mechanical damage to the lines.

The component is intended for gasoline-powered engines, which is significant in the context of operating temperatures and the thermal characteristics of the 4.0 TFSI unit. Selecting a pipe consistent with the design of a specific Audi model helps reduce the risk of improper installation and subsequent coolant leaks.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of your Audi's engine area and need other components from the same group, such as additional pipes, return hoses, or sections connecting to the radiator, check out the available parts in the Audi cooling system pipes and hoses category.

To better understand the impact of a functional cooling pipe on powertrain durability and the symptoms of overheating, it is worth checking our service guide: Engine cooling system – overheating, repair, and used radiators. The article helps assess when replacing pipes and hoses is justified and how to maintain the entire cooling system in a car with a gasoline engine.