Audi Q5 8R Automatic Gearbox Oil Pipe Line Tube 2.0 TDi 8R0317818AK

The Audi Q5 8R Automatic Transmission Oil Line 2.0 TDi is a component from the Oil Coolers and Lines group, designed for the automatic transmission lubrication system. It ensures stable oil flow between the gearbox and the cooling system, supporting safe drivetrain operation and reducing the risk of overheating. This is a solution for users who want to maintain the gearbox's factory operating characteristics and ensure its durability.

Specifications and technical data

• SKU: 8R0317818AK
• Mark: Audi
• Condition: Used
• OEM Part Number: 8R0317818AK
• Substitutable numbers: 8R0317818AK, 8R0 317 818 AK
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and Function in the Drivetrain

The oil line in an automatic transmission plays a crucial role in the lubricating and cooling fluid circulation. It is responsible for transporting transmission oil to the oil cooler and its return, which helps maintain a stable operating temperature of the transmission during city driving, highway driving, and under increased load conditions.

For 2.0 TDi diesel engines, using a dedicated oil line helps reduce pressure drops in the system, supports smooth gear changes, and minimizes the risk of accelerated wear of internal transmission components.

Compatibility with Automatic Transmissions

This component is designed to work with automatic transmissions, meaning it is adapted to the specific flow and oil temperature parameters characteristic of this type of gearbox. The appropriate geometry of the line and factory mounting points facilitate correct routing of the oil line relative to the transmission and cooler, minimizing the risk of vibrations, chafing, or leaks.

By adhering to the original system design, installing this line helps maintain the transmission's operating characteristics as intended by the manufacturer, which is particularly important in vehicles equipped with advanced gear shift control.

Characteristics of a Used Part

As a used part, the automatic transmission oil line offers a cost-effective solution for servicing while maintaining a design consistent with the factory project. A used component allows for the restoration of the oil cooling system's functionality when the existing line has suffered mechanical damage or shows signs of leakage.

Choosing such a component is particularly beneficial for routine maintenance repairs where preserving the original geometry and mounting points is a priority, without the need for aftermarket replacements with uncertain fitment.

Importance for Transmission Durability

A functional oil line directly impacts:

• maintaining the correct operating temperature of the automatic transmission,
• stable oil pressure in the circuit,
• reducing the risk of slippage and jerking during gear changes,
• decreasing thermal stress on friction and hydraulic components.

Replacing a worn or damaged line with a correctly selected component from the Oil Coolers and Lines group is one of the basic preventative steps when symptoms of transmission overheating or visible oil leaks appear.

Technical Support and Additional Materials

To better understand the impact of the cooling system on drivetrain component longevity, it is worth consulting the guide on cooling system diagnostics and service – you can find it in the article Engine Cooling System – Overheating, Repair, and Used Coolers, which discusses practical aspects of the operation of coolers and oil lines.

If you are planning a comprehensive repair or upgrade of the oil cooling system area in your Audi and need other components from the same group, such as oil lines, oil coolers, or oil line connectors, check the available parts in the Audi Oil Coolers and Lines category.