Audi A6 C6 Gearbox Transmission Oil Cooling Pipe Hose Line 4F0317817AA

Audi A6 C6 Gearbox Transmission Oil Cooling Pipe Hose Line is an original drivetrain component responsible for the safe delivery and return of oil to the cooler. Thanks to its precise geometry and factory-spec connectors, it ensures stable operating pressure and efficient heat exchange in the automatic transmission, which translates into its durability and consistent performance. This solution is dedicated to users looking for a part that complies with Audi's factory specifications, without compromising on fitment.

Specifications and technical data

• SKU: 4F0317817AA
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0317817AA
• Substitutable numbers: 4F0317817AA, 4F0 317 817 AA
• Category: Oil Coolers & Lines

Function and role in the transmission oil cooling system

The transmission oil cooling pipe in the Audi A6 C6 operates in the circuit between the gearbox and the oil cooler. It is responsible for:

• transporting transmission oil to the cooler to reduce its temperature,
• maintaining system tightness under variable operating pressures,
• stabilizing the transmission operating temperature during city and highway driving.

By maintaining proper oil flow, the gearbox operates within the temperature range intended by the manufacturer, which reduces the risk of overheating, loss of lubricating properties, and accelerated wear of internal components.

Construction and fitment for Audi A6 C6

The offered pipe is a component from the Oil coolers and lines group, designed specifically for the geometry of the Audi chassis and drivetrain. This means:

• factory-defined routing of the pipe in the engine bay and undercarriage,
• mounting points designed for Audi to reduce vibration and stress,
• use of connectors adapted to the original oil cooler and the gearbox housing.

Such fitment facilitates installation and helps avoid unnatural bends or stresses that could lead to micro-cracks or leaks in the long term.

Benefits of using an original oil cooling pipe

Using a transmission oil cooling pipe that complies with Audi's factory specifications translates into a number of practical benefits:

• Stable transmission operating temperature – proper oil flow through the cooler reduces the risk of overheating during intensive use.
• Reduced wear of transmission components – properly cooled oil retains its lubricating properties, which promotes longer component life.
• No modifications required – the original geometry of the pipe allows for installation in place of a worn component without adapting the system.
• Consistency with the engine and transmission cooling system – the pipe works with the factory oil cooler, maintaining the flow characteristics designed by the manufacturer.

Condition, application, and part selection

The item comes from the group of original Audi components and is intended for use as a replacement for a worn or leaking pipe in the A6 C6 generation model. Choosing this solution is particularly important in the case of:

• symptoms of gearbox overheating or a decrease in shifting quality,
• visible oil leaks in the area of the transmission oil cooler,
• post-accident repairs in the front area of the vehicle, where the pipe could have suffered mechanical damage.

For certainty of selection, it is recommended to compare the shape and type of connectors with the currently installed pipe and verify compatibility with Audi service documentation.

Technical support and related system components

The transmission oil cooling system works with the oil cooler, return lines, and the transmission itself, so it is worth looking at the entire system during diagnostics. Practical tips on the impact of cooling on the durability of the engine and transmission can be found in the article: Engine cooling system – overheating, repair, and used radiators.

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