Audi RS6 C7 Gearbox Oil Pressure Return Feed Pipe Line Automatic 4H0317817H

Audi RS6 C7 Gearbox Oil Pressure Return Feed Pipe Line Automatic is a component from the Oil coolers and lines group, responsible for the efficient return of oil from the cooling system to the automatic transmission. Designed for petrol engines with an automatic transmission, it ensures stable flow of the operating medium and supports the safe operation of the drivetrain under demanding operating conditions.

Specifications and technical data

• SKU: 4H0317817H
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0317817H
• Substitutable numbers: 4H0317817H, 4H0 317 817 H
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and function in the oil cooling system

The automatic transmission oil return pipe is responsible for transporting oil from the cooler back to the transmission, stabilizing the operating temperature and lubrication parameters. In the Audi RS6 C7 model, operating with a powerful petrol engine, a properly functioning return pipe is crucial for:

• maintaining the correct oil pressure in the automatic transmission,
• dissipating excess heat from the drivetrain system,
• reducing the risk of transmission overheating during dynamic driving.

Thanks to the proper routing of oil in the circuit, this component supports stable operation of the automatic transmission and extends the service life of internal components.

Benefits of using an original Audi pipe

The original oil return pipe designed for the Audi RS6 C7 is structurally matched to the oil cooling system in this model, which translates into:

• precise fitment with the transmission and oil cooler ports,
• preservation of the factory line routing in the engine bay,
• appropriate resistance to temperature and operating pressure typical for petrol engines with an automatic transmission.

Such a fit minimizes the risk of leaks, incorrect pipe positioning, or interference with other auxiliary components. As a result, you maintain the factory operating parameters of the oil cooling system without the need for system modifications.

Application in vehicles with a petrol engine and automatic transmission

The presented pipe has been designed to work with a petrol engine and an automatic transmission in the Audi RS6 C7. This means that its geometry, internal diameter, and flow characteristics are adapted to the parameters of the transmission oil used in this drivetrain. In practice, this translates into:

• proper oil circulation throughout the cooling circuit,
• stable transmission operating conditions during acceleration and highway driving,
• better protection of friction and hydraulic elements in the automatic transmission.

For users who drive their vehicle dynamically, maintaining the efficiency of the oil return pipe is an important element of preventive maintenance.

Characteristics of the used component

The offered pipe belongs to the group of used parts, which allows for an economical repair of the oil cooling system while maintaining the manufacturer's original specifications. Choosing such a solution is particularly beneficial when you want to:

• preserve the factory design of the oil cooling system and lines,
• reduce service costs while using an OEM component,
• fit the existing installation without the need for modifications.

A pipe of this type will work well both when replacing a damaged component and during preventive maintenance of the oil cooling system in vehicles with higher mileage.

Technical support and related system components

When working on the automatic transmission oil cooling system, it is worth paying attention to the condition of other components – the lines themselves, the oil cooler, and the mounting elements form a common system responsible for the stable operating temperature of the transmission. If you are planning a comprehensive repair or upgrade of the oil cooling area in your Audi and need other components from the same group, such as additional oil lines, connecting sections, or elements supplying oil to the cooler, check the available parts in the Audi oil coolers and lines category.

To better understand how operating temperature affects the durability of the cooling system and when it is worth considering replacing lines and oil coolers with used components, read the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses in a practical way the impact of high temperatures on car components.