Audi A5 8T Gearbox Transmission Oil Cooling Pipe Hose Line 8K0317817BN

Audi A5 8T Gearbox Transmission Oil Cooling Pipe Hose Line is a component from the Oil coolers and lines group, designed for the automatic transmission oil system in Audi A5 8T models. It is responsible for the safe routing of oil between the transmission and the cooler, which is crucial for maintaining a stable operating temperature of the gearbox and its long-term efficiency.

Specifications and technical data

• SKU: 8K0317817BN
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0317817BN
• Substitutable numbers: 8K0317817BN, 8K0 317 817 BN
• Category: Oil Coolers & Lines

Purpose and function in the transmission oil system

The transmission oil pipe in the Audi A5 8T operates in a demanding environment of high temperature and pressure. Its task is to maintain a leak-proof flow of oil between the transmission and the oil cooler, which allows for:

• stabilization of transmission oil temperature during city and highway driving,
• reducing the risk of automatic transmission overheating,
• maintaining proper lubrication parameters for the internal components of the transmission.

Thanks to a properly selected pipe, the transmission oil cooling system maintains the efficiency designed by the manufacturer, which translates into predictable drivetrain operation and a lower risk of costly failures.

Construction and fitment for the Audi A5 8T

The pipe has been designed specifically for the geometry and layout of components in the Audi A5 8T, maintaining factory mounting points and oil line routing. Properly shaped flexible and rigid sections allow for:

• collision-free routing of the pipe in the engine bay and chassis,
• reduction of vibrations transmitted from the powertrain and transmission,
• maintaining connection tightness over a long period of operation.

Such fitment facilitates installation in accordance with Audi service documentation and makes it easier to maintain the original routing of the oil system.

Characteristics of the used component

The offered pipe comes from dismantling and is a used part, which allows you to combine the functionality of an original part with an attractive price. In practice, this means the possibility of restoring the correct operation of the transmission oil cooling system without the need to invest in a new component from an authorized dealer network.

Choosing a used oil pipe is particularly beneficial for maintenance repairs when you want to maintain the vehicle's factory specifications while optimizing service costs.

Importance for transmission durability

A functional oil pipe has a direct impact on the lifespan of an automatic transmission. Maintaining proper transmission oil flow and temperature reduces wear on clutch plates, control valves, and hydraulic components. Replacing a worn or leaking pipe with a functional unit helps to:

• minimize the risk of pressure drops in the oil system,
• prevent oil leaks in the area of the cooler and transmission,
• maintain stable operating conditions for the transmission across a wide range of loads.

For users planning long-term operation of their Audi A5 8T, this is an important preventive step that supports trouble-free drivetrain performance.

Technical support and additional materials

To better understand the impact of the cooling system on the durability of the powertrain and associated components, it is worth checking out the guide on diagnostics and service of cooling systems – you can find it in the article Engine cooling system – overheating, repair, and used radiators. This will allow you to take a broader look at the relationships between operating temperature and the lifespan of key drivetrain components.

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