Audi A6 C7 Engine Coolant Pipe Hose Tube Line 2.0 Diesel CNHA 4G0122055D

Audi A6 C7 Engine Coolant Pipe Hose Tube Line 2.0 Diesel CNHA is an original cooling system component, designed specifically for Audi diesel units. Thanks to its factory geometry and fitment, the pipe ensures stable coolant flow and proper cooperation with other system components. It is a practical solution for users who want to maintain the structural integrity of the cooling system in their vehicle.

Specifications and technical data

• SKU: 4G0122055D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0122055D
• Substitutable numbers: 4G0122055D, 4G0 122 055 D
• Fuel type: Diesel
• Part type: Pipe
• Category: Coolant Hoses

Purpose and function in the cooling system

The pipe belongs to the Cooling system pipes and hoses group, responsible for transporting coolant between key engine components. In 2.0 Diesel CNHA type engines, a properly selected pipe is essential for:

• maintaining the correct engine operating temperature,
• stable fluid circulation throughout the system,
• reducing the risk of overheating under load,
• maintaining proper cooperation with the thermostat and radiator. The appropriate diameter, shape, and rigidity of the pipe allow for trouble-free installation at factory mounting points and reduce stress within the system.

Benefits of using an original Audi pipe

The component from the Audi brand is designed with the specific architecture of the engine bay and the cooling system layout in mind. In practice, this means:

• factory fitment for the 2.0 Diesel CNHA engine without the need for modifications,
• preservation of the fluid flow path intended by the manufacturer,
• compatibility with original clamps and mounting brackets,
• material consistency with other pipes in the system. For Audi A6 C7 users, choosing such a pipe is a way to keep cooling system performance parameters close to factory levels, which is important for both engine durability and operational comfort.

Performance characteristics and installation

The coolant pipe designed for a diesel engine operates at elevated temperatures and under variable pressure. The construction selected by the vehicle manufacturer accounts for:

• resistance to temperatures typical for Diesel units,
• operation in the environment of coolant used in Audi vehicles,
• geometry adapted to the engine accessories in the A6 C7 model. A component configured in this way makes it easier for technicians to maintain proper pipe routing in the engine bay, which reduces the risk of rubbing against other components and local stress during engine operation.

Part condition and service application

The offered pipe comes from the group of original Audi components and is intended for service applications in vehicles with the 2.0 Diesel CNHA engine. It can be used for:

• repairs following a cooling system failure,
• scheduled replacement of worn-out pipes,
• restoring the factory configuration after previous modifications. Using a component from the same design line as other cooling system parts promotes maintaining predictable engine operating conditions and facilitates future diagnostics. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional pipes, return hoses, or sections connecting to the radiator, check the available parts in the Audi cooling system pipes and hoses category.

Technical support and selection of cooling system components

When working on the coolant circulation, it is worth paying attention to the condition of other components – the radiator, pipes, connections, and cooperating elements. For users who want to better understand the impact of part quality on engine durability, the following article will be helpful: Cooling system failure: why is an original used radiator a safer choice than a cheap replacement?. It allows for a broader look at the topic of selecting cooling system components and consciously planning subsequent service stages.