Audi RS4 B8 S5 8T Oil Line Intake Collector 4.2 FSI Petrol 079115155AK

Audi RS4 B8 S5 8T Oil Line Intake Collector is an original lubrication system component designed for 4.2 FSI petrol engines used in the sports models RS4 B8 and S5 8T. This specialized line is responsible for the precise routing of oil in the intake manifold area, which is crucial for the stable operation of the power unit. Thanks to its factory design, it ensures proper fitment within the oil system and maintains engine performance parameters.

Specifications and technical data

• SKU: 079115155AK
• Mark: Audi
• Condition: Used
• OEM Part Number: 079115155AK
• Substitutable numbers: 079115155AK, 079 115 155 AK
• Fuel type: Petrol
• Part type: Oil Cooler Line
• Category: Oil Coolers & Lines

Purpose and function in the lubrication system

The oil line in the intake manifold area of the 4.2 FSI engine is responsible for the controlled flow of oil between the lubrication system components and the upper part of the engine. In high-performance engines such as the 4.2 FSI, proper oil routing affects:

• maintaining adequate pressure in the lubrication system,
• stable operation of mechanisms in the upper part of the engine,
• reducing the risk of overheating components that interact with oil,
• maintaining engine performance characteristics at high RPMs. Selecting the correct oil line is particularly important in vehicles with a sporty character, where the engine often operates under higher loads.

Benefits of using an original Audi line

Using an original oil line in the intake manifold area for RS4 B8 and S5 8T models allows for the preservation of factory oil routing geometry and compatibility with other lubrication system components. Key advantages include:

• precise fitment to the mounts and shape of the intake manifold,
• maintaining the oil flow path specified by the manufacturer,
• reducing the risk of leaks resulting from improper line positioning,
• consistency with the operating parameters of the 4.2 FSI petrol engine. Choosing an original part from this group helps avoid assembly issues and improper lubrication system operation that may occur when using unsuitable aftermarket replacements.

Product characteristics and application in the petrol engine

The intake collector oil line has been designed with the specifics of direct-injection petrol engines in mind. In 4.2 FSI units, it is particularly important to maintain stable lubrication conditions under variable loads and high rotational speeds. This component supports:

• even distribution of oil to critical points of the engine,
• proper interaction with the intake manifold and engine accessories,
• maintaining the operational parameters specified by the manufacturer. As a result, this line meets the requirements of users who expect dynamic yet controlled power unit operation from their RS4 B8 and S5 8T models.

Condition, installation, and service application

The item comes from the Oil coolers and lines group, meaning it is part of a wider system responsible for oil circulation and condition within the engine. As a used product, it can be an attractive service solution for users who want to maintain the original vehicle specification at reasonable repair costs. In practice, the line is suitable for:

• replacing a damaged or leaking oil line,
• restoring the factory configuration of the lubrication system after modifications,
• preventive maintenance in engines operated under high-load conditions. Due to its factory origin, installation is performed using the original mounting points, which facilitates service work and reduces the time required to fit the component.

Related oil system components and service knowledge

When maintaining the oil system in sports Audi models, it is worth paying attention not only to the lines but also to components responsible for oil cooling and airflow in the engine bay. High engine operating temperatures, especially in summer, have a direct impact on the load on the entire system. More practical information on this topic can be found in the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, where the relationships between ambient temperature, cooling, and component durability are discussed. If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other items from the same group, such as oil lines, oil coolers, or additional sections of the oil installation, check the available parts in the Audi oil coolers and lines category.