Audi A6 C8 A7 4G Water Coolant Pipe Hose Line 50 TFSIe 4K0145947E

Audi A6 C8 A7 4G Coolant Hose Pipe Tube 50 TFSIe is an original cooling system component from the Cooling System Hoses and Pipes group, designed for use in modern Audi 50 TFSIe powertrains. This used OEM part ensures factory geometric fit, proper coolant flow, and stable operation of the engine's thermal system and ancillaries. It's a practical solution for users seeking a proven part at a reasonable price, without compromising on installation compatibility.

Specifications and technical data

• SKU: 4K0145947E
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0145947E
• Substitutable numbers: 4K0145947E, 4K0 145 947 E
• Part type: Hose
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The coolant hose in Audi A6 C8 and A7 4G models with the 50 TFSIe drive is responsible for the controlled transport of coolant between system components such as the engine block, heat exchangers, and auxiliary modules. A correctly selected pipe minimizes the risk of localized overheating, supports the stabilization of operating temperature, and contributes to the longevity of the powertrain and hybrid components.

By maintaining factory geometry and connection diameters, this element allows for a sealed connection with other cooling system components, reducing the risk of leaks and drops in operating pressure. This is particularly important in modern designs where the cooling system serves not only the internal combustion engine but also power electronics and the high-voltage battery.

Advantages of Using an Original Audi Hose

Using an original coolant hose in 50 TFSIe hybrid powertrains offers a number of operational benefits:

• factory fit for the cooling system of specific Audi A6 C8 and A7 4G versions,
• maintenance of coolant flow parameters designed by the manufacturer,
• compatibility with original connectors, clamps, and mounting brackets,
• reduced risk of leaks compared to aftermarket alternatives,
• consistency with Audi's service documentation and workshop procedures.

For workshops and users, this means easier installation, predictable system behavior, and a lower risk of needing further intervention after a short period of use. In plug-in hybrid powertrains, maintaining a stable operating temperature directly impacts the durability of the entire drivetrain, making the choice of an original part a technically safe solution.

Characteristics of a Used Part

The offered hose is a dismantled part sold as a used OEM component. This type of part significantly reduces repair costs compared to a new component, while retaining the original design and material. In practice, this means a favorable compromise between price and functionality, especially for accident repairs or services performed outside the authorized network.

A used coolant hose is a good choice wherever maintaining the original routing of hoses in the engine bay is crucial, and at the same time, repair economy is important. The proper condition of the spigots, bent sections, and sealing surfaces directly affects system tightness, which is why this type of component is often chosen by professional workshops specializing in the Audi brand.

Installation and Operational Tips

When replacing the coolant hose in hybrid Audi models, it's worth paying attention to a few technical aspects:

• checking the condition of the cooperating hose clamps and quick connectors,
• thorough bleeding of the cooling system after installation,
• using coolant with the specification recommended by the vehicle manufacturer,
• checking for leaks at various operating temperature ranges.

This approach allows for the full utilization of the original hose's potential and reduces the risk of further leaks. For users, this means stable cooling system operation, and for workshops, fewer complaints and service returns.

Cooling System Expansion and Additional Materials

If you are planning a comprehensive engine area repair or upgrade for your Audi and need other parts from the same group, such as additional hoses, return pipes, or sections connecting to the radiator, check the available parts in the Audi Cooling System Hoses and Pipes category.

To better understand how thermal conditions affect the durability of hoses, radiators, and fans, it's worth reading our guide: Summer Heat vs. Cooling System: Used Radiators and Fans for Savings. You will find practical tips on the operation and selection of cooling system components that will help in consciously planning repairs and inspections.