Audi SQ5 FY Automatic Gearbox Oil Cooler Hose Line Tube Pipe 8W0317818A

Audi SQ5 FY Automatic Gearbox Oil Cooler Hose Line Tube Pipe is a specialized component from the Oil coolers and hoses group, designed for the drivetrain in diesel engine versions with an automatic transmission. It is responsible for the safe delivery and return of oil to the cooler, stabilizing the gearbox operating temperature and supporting its durability. This is a precisely engineered component that allows for the restoration of proper oil circulation in the transmission cooling system.

Specifications and technical data

• SKU: 8W0317818A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0317818A
• Substitutable numbers: 8W0317818A, 8W0 317 818 A
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Function of the hose in the gearbox oil cooling system

The oil cooler hose in the Audi SQ5 FY operates in a demanding environment, connecting the automatic transmission to the oil cooler. Its task is to maintain a stable flow of the lubricating medium, which helps reduce temperature spikes during dynamic driving, towing, or highway travel. A properly functioning hose supports uniform oil cooling, which translates into smooth gear shifting and protection of the transmission's internal components.

Application: Diesel and automatic transmission

The element has been designed for vehicles with a Diesel engine and an Automatic transmission. This configuration generates high thermal loads, which is why a functional oil cooler hose is crucial for maintaining stable gearbox operating parameters. Proper fitment to the specific drivetrain configuration reduces the risk of leaks, pressure drops, or transmission overheating.

Benefits of using an original hose

Using a hose dedicated to the Audi SQ5 FY ensures:

• proper routing geometry in the engine bay and at the gearbox,
• compatibility with factory connectors and mounts,
• stable oil flow across the entire load range,
• reduced risk of leaks at the connections.

As a result, the automatic transmission oil cooling system maintains its designed operating parameters, and the user gains predictable drivetrain performance in daily operation.

Importance for gearbox durability

In the automatic transmissions used in the Audi SQ5 FY, oil temperature has a direct impact on the lifespan of clutch discs, control valves, and mechatronics. A functional oil cooler hose helps keep the oil within the optimal temperature range, which reduces lubricant degradation and limits the risk of failures resulting from overheating. Replacing a worn or leaking hose is therefore an essential part of preventive maintenance for the entire drivetrain.

Technical support and knowledge about the cooling system

If you want to better understand how cooling affects the durability of the power unit and accessories, it is worth consulting practical service knowledge. Extended information on the role of coolers and hoses in protecting the engine and components can be found in the article Engine cooling system – overheating, repair, and used coolers, which discusses common overheating problems and the importance of a functional fluid circulation system.

Expanding the oil cooling system in an Audi

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

For users considering a wider range of modernization or tuning work using aftermarket components, a guide describing common pitfalls when choosing used parts may also be helpful. Practical tips can be found in the material Buying used car parts – the most common mistakes when choosing tuning parts, which facilitates informed planning of modifications and repairs.