Audi RS4 B8 Engine Oil Cooler Pressure Line Pipe Hose 4.2 FSI 079117315D

Audi RS4 B8 Engine Oil Cooler Pressure Line Pipe Hose 4.2 FSI is an original component from the Oil coolers and lines group, designed specifically for the 4.2 FSI engine lubrication system. This used pressure line allows for maintaining the factory oil flow characteristics, which promotes stable engine operation and reduces the risk of overheating.

Specifications and technical data

• SKU: 079117315D
• Mark: Audi
• Condition: Used
• OEM Part Number: 079117315D
• Substitutable numbers: 079117315D, 079 117 315 D
• Part type: Oil Cooler Line
• Category: Engine Oil Coolers & Lines

Purpose and function of the pressure line

The oil cooler pressure line in the Audi RS4 B8 is responsible for transporting oil at the correct pressure between the engine and the oil cooler. A properly selected component ensures:

• stable pressure in the lubrication system during dynamic driving,
• efficient heat dissipation from the engine oil,
• maintenance of 4.2 FSI engine operating parameters within the manufacturer's specifications.

By maintaining the factory geometry of the line, the oil cooling system operates predictably, which is particularly important in a car with a sporty character, such as the RS4 B8.

Original Audi quality in the Oil coolers and lines category

The offered line comes from the Audi brand, which means maintaining factory standards of workmanship and fitment. An original component from the Oil coolers and lines group minimizes the risk of leaks, assembly problems, and incorrect routing of the line in the engine bay.

In practice, this translates into:

• secure fitment with other oil cooling system components,
• no need for modifications or custom mounting brackets,
• preservation of the oil flow path intended by the manufacturer.

Used condition and assembly aspects

The item is offered in used condition, which allows for an economical repair of the oil cooling system while maintaining the original specification. The line is intended for direct installation in place of the factory counterpart, using the stock mounting points.

Before installation, it is recommended to:

• inspect the entire length of the line for leaks,
• check the condition of the connection ends and sealing surfaces,
• use new seals in accordance with the vehicle manufacturer's recommendations.

This approach helps keep the lubrication system in good condition and reduces the risk of future oil leaks.

Benefits of using an original pressure line

Using an original oil cooler pressure line in the Audi RS4 B8 provides a number of practical benefits. The most important include:

• Factory fitment – the line was designed specifically for the 4.2 FSI engine oil system, which facilitates installation and eliminates routing geometry issues.
• Compatibility with other system components – works with the stock oil cooler and engine accessories without the need for modifications.
• Controlled operating parameters – maintains the manufacturer-intended oil flow and pressure, which is essential under high thermal loads.

Technical support and additional materials

During the summer, the oil and coolant cooling systems operate under particularly demanding conditions. To better understand the impact of high temperatures on the entire engine cooling system and the potential savings when using used components, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

If you want to make an informed choice between used original parts and aftermarket replacements, the article 5 reasons why a used OEM part is a better choice than a replacement will also be helpful, where you will find practical tips and criteria for selecting parts.

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