Audi A6 C8 Coolant Hose Water Line Pipe Tube 4K0819552C

Audi A6 C8 Coolant Hose Water Pipe is an original part from the Cooling System Hoses and Pipes category, specifically designed for the cooling system in modern Audi units. A used OEM component ensures a factory fit, stable coolant flow, and predictable system behavior under real operating conditions.

Specifications and technical data

• SKU: 4K0819552C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0819552C
• Substitutable numbers: 4K0819552C, 4K0 819 552 C
• Part type: Hose
• Category: Coolant Hoses

Function and Role in the Audi A6 C8 Cooling System

The coolant hose in the Audi A6 C8 is responsible for the controlled routing of the cooling medium between key system components – the engine block, heat exchangers, and other water fittings. A correctly selected water pipe minimizes the risk of localized overheating, pressure drops, and leaks, which could lead to costly engine failures.

The original manufacturing, characteristic of the Audi brand, means maintaining the correct flow diameter, bend geometry, and mounting points, which translates to stable cooling system operation across the full range of engine loads.

Construction, Fit, and Installation

The water pipe in this reference has been designed as a system component, working with factory-fitted spigots, clamps, and mounting brackets in the Audi A6 C8 generation. Thanks to this:

• the correct routing of the hose relative to engine accessories is maintained,
• the risk of rubbing against other components and abrasion is reduced,
• adequate rigidity and resistance to engine vibrations are ensured.

A used OEM part allows for the preservation of the original cooling concept, without the need for adaptations or modifications. This is particularly important in modern designs where the cooling system is precisely tuned to the engine's thermal characteristics.

Benefits of Using an Original Coolant Hose

Using an original water pipe in the Audi A6 C8 offers a range of practical service and operational benefits:

• Factory Fit – no issues with hose length, diameter, or geometry, which simplifies installation and reduces mechanic's working time.
• Stable Flow Parameters – maintaining the designed cross-section and flow path supports uniform engine cooling.
• Cooling System Compatibility – the hose works with original system components such as the coolant pump, radiator, or thermostat.
• Engine Thermal Safety – a functional hose reduces the risk of leaks, coolant level drops, and engine overheating.

Component Condition and Service Application

The offered hose is a used OEM component, allowing for economical cooling system repair while maintaining the original manufacturer's specifications. This type of part is suitable for both routine replacement of a worn hose and for repairs following a failure related to a leak or mechanical damage to the existing water pipe.

When performing service work on the cooling system, it is worth remembering comprehensive diagnostics – checking for leaks, the condition of clamps and spigots, and the quality of the coolant can extend the lifespan of the entire system.

Technical Support and Educational Materials

If you want to better understand how to properly diagnose engine operating temperature issues and how much a functional coolant circulation impacts engine durability, read the article: Engine Cooling System – Overheating, Repair, and Used Radiators. This is a practical addition to your knowledge when planning repairs related to cooling hoses and pipes.

If, during the modernization or repair of your Audi's cooling system, you are also considering replacing other components of this circuit, such as additional hoses, tees, or branches, check the available parts in the category Audi Cooling System Hoses and Pipes.