Audi A4 B8 A5 8T Oil Cooling Pipe Gearbox Transmission Hose Line 8K0317818CL

Audi A4 B8 A5 8T Oil Cooling Pipe Gearbox Transmission Hose Line is an original component from the Oil coolers and hoses group, designed for the automatic transmission system in Audi vehicles with petrol engines. It ensures stable transmission oil flow between the gearbox and the cooling system, which translates into safe transmission operation and predictable drivetrain performance.

Specifications and technical data

• SKU: 8K0317818CL
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0317818CL
• Substitutable numbers: 8K0317818CL, 8K0 317 818 CL
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Oil Cooler Hose
• Category: Oil Coolers & Lines

Purpose and technical function

The transmission oil hose in Audi A4 B8 and A5 8T models is responsible for transporting transmission oil between the automatic gearbox and the cooling module. A properly selected and leak-free hose:

• stabilizes the operating temperature of the automatic transmission,
• reduces the risk of transmission oil overheating,
• prevents pressure drops in the oil circuit,
• minimizes the risk of leaks at critical installation points.

As a result, the drivetrain in petrol cars with an automatic transmission maintains predictable gear shifting characteristics and proper operating standards.

Benefits of using an original oil hose

Using an original oil hose in the Audi transmission cooling system allows for maintaining factory flow parameters and seal integrity. In practice, this means:

• reliable cooperation with the existing oil cooling system,
• properly selected hose diameter and geometry,
• compatibility with mounting points and connection points on the body and gearbox,
• reduced risk of vibrations and stress during drivetrain operation.

For the user, this translates into stable automatic transmission operation, reduced risk of failures resulting from overheating, and easier diagnostics of potential faults in the future.

Product characteristics and condition

The offered hose belongs to the group of used OEM components, which means it comes from vehicle dismantling and has been verified for further use. This type of component is particularly attractive for users looking for a technically sound solution while maintaining reasonable automatic transmission service costs.

Choosing a used transmission oil hose is particularly beneficial in situations where:

• a quick replacement of a damaged or leaking hose is necessary,
• the repair concerns a vehicle used intensively, where the cost-to-effect ratio is important,
• compliance with the factory installation without the need for modifications is essential.

Integration with the cooling system and automatic transmission

The transmission oil hose works directly with the oil cooling system and the automatic transmission in petrol cars. A properly functioning component:

• maintains proper oil flow through the cooler,
• supports temperature stabilization in city and highway conditions,
• reduces the risk of transmission performance drops under high loads.

To better understand the impact of temperature on the entire system, it is worth reading the guide describing the operation of the cooling system in summer conditions: Summer heat vs. cooling system – how used cooling components affect operational safety.

Application in service practice

Replacing the transmission oil hose is a typical service operation performed when:

• oil leaks are detected in the vicinity of the hose connections,
• mechanical damage occurs due to collisions or corrosion of the mounts,
• the automatic transmission cooling system is being upgraded or serviced.

Selecting the right hose for a specific Audi A4 B8 or A5 8T configuration with a petrol engine and automatic transmission allows for shortening repair time and avoiding problems with matching the length or shape of the component.

If you are planning a comprehensive repair or upgrade of the transmission oil cooling area in your Audi and need other elements from the same group, such as additional hoses, return sections, or oil supply lines to the cooler, check the available parts in the Audi oil coolers and hoses category.

Summary

Audi A4 B8 A5 8T Oil Cooling Pipe Gearbox Transmission Hose Line is a practical solution for users who want to restore proper oil circulation in the automatic transmission and ensure stable operating temperatures for the gearbox. An original, used component from the Oil coolers and hoses group allows for a technically sound repair while maintaining favorable service costs, making it a reasonable choice for professional workshops and DIY repairs.