Audi A4 B8 A5 8T Gearbox Oil Cooling Pipe Hose 2.0 TDI 8K0317817CS

Audi A4 B8 A5 8T Gearbox Oil Cooling Pipe Hose is an original transmission system component designed for Diesel units with an automatic transmission. It ensures stable transmission oil flow between the gearbox and the cooler, which supports safe operating temperatures and proper gear shifting performance. This is a practical solution for users looking to restore factory operating parameters of their automatic transmission after a repair or collision.

Specifications and technical data

• SKU: 8K0317817CS-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0317817CS
• Substitutable numbers: 8K0317817CS, 8K0 317 817 CS
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Hose
• Category: Hoses, Lines & Pipes

Application and function in the drivetrain

The gearbox oil cooling pipe in Audi A4 B8 and A5 8T models with a diesel engine is responsible for transporting transmission oil to the cooling circuit. A properly functioning component of this type:

• stabilizes the operating temperature of the automatic transmission,
• reduces the risk of transmission oil overheating,
• supports smooth, predictable gear changes,
• reduces thermal load on other transmission components.

For vehicles used in city traffic, on highways, or for towing, a functional oil cooling pipe has a direct impact on the durability of the entire automatic transmission.

Construction and fitment for Audi

The offered item belongs to the Pipes, hoses and tubes group, which means it is factory-fitted to the medium routing system in the Audi body. The design of the pipe is prepared for specific mounting points in the A4 B8 and A5 8T, ensuring that the following are maintained:

• correct routing relative to the subframe and suspension components,
• appropriate bending radii, minimizing pressure drops,
• collision-free routing relative to shields, drive shafts, and body elements.

Such fitment facilitates installation and reduces the risk of incorrect pipe positioning, which could result in chafing or leaks.

Characteristics of the used component

The pipe comes from dismantling, which allows for maintaining the original geometry and compatibility with the factory oil cooling system. A used component of this type is particularly beneficial for post-accident repairs or replacing a damaged pipe when you want to:

• maintain the original technical specification of the transmission system,
• reduce costs compared to a new part,
• ensure consistent fitment with serial connectors and mounts.

Thanks to this, the pipe can be used as a direct replacement for a damaged component without the need for system modifications.

Benefits of a properly functioning oil cooling pipe

A functional oil cooling pipe in an automatic transmission translates into real operational benefits:

• more stable transmission operating parameters under load,
• lower risk of gear shift quality degradation at high temperatures,
• reduction of transmission oil wear resulting from overheating,
• better protection of friction elements and control hydraulics.

For users planning long-term vehicle operation, replacing a damaged pipe with a functional component is a simple way to improve the reliability of the entire drivetrain.

If you are planning a comprehensive repair or upgrade of the transmission area in your Audi and need other components from the same group, such as oil lines, cooling hoses, or medium routing tubes, check the available parts in the Audi pipes, hoses and tubes category.

For drivers interested in a broader look at drivetrain configuration and selecting gear ratios for their driving style, the guide article Dismantled drive axles and differentials – how to choose gear ratios for your driving style may be helpful, as it organizes key concepts and relationships within the drivetrain.