Audi RS4 B8 Engine Oil Sump Lower Part Panel Cover 4.2 FSI CFSA 079103602CA

Audi RS4 B8 Engine Oil Sump Lower Part Panel Cover 4.2 FSI CFSA is an original component from the Oil sumps group, designed for the 4.2 FSI engine with the CFSA code. Thanks to its factory origin, it ensures a perfect fit to the engine block, proper oil flow, and stable interaction with other components of the lubrication system in the Audi RS4 B8.

Specifications and technical data

• SKU: 079103602CA
• Mark: Audi
• Condition: Used
• OEM Part Number: 079103602CA
• Substitutable numbers: 079103602CA, 079 103 602 CA
• Part type: Oil Sump
• Category: Oil Sumps

Purpose and function in the lubrication system

The lower oil sump in the 4.2 FSI CFSA engine is responsible for collecting oil, stabilizing its level, and working in conjunction with the lubricant suction and return system. In high-revving units, such as those in the Audi RS4 B8, a properly selected oil sump is crucial for maintaining correct oil pressure, reducing foaming, and ensuring proper cooling of moving parts. The original design of this part was engineered for the specific loads of the V8 FSI engine, taking into account the geometry of the channels, the shape of the bottom, and the placement of mounting points. This ensures compatibility with factory seals, accessories, and covers, which facilitates maintenance and minimizes the risk of leaks.

Construction and fitment for Audi RS4 B8 4.2 FSI CFSA

The Audi RS4 B8 Engine Oil Sump Lower Part Panel Cover 4.2 FSI CFSA is an OEM component whose geometry corresponds exactly to the factory requirements for this engine unit. The layout of mounting holes, contact surfaces, and sockets for additional components has been developed for the specific crankshaft-piston system and engine block design. Such a fit translates into:

• proper sealing of the contact with the engine block,
• correct interaction with the oil suction system,
• maintenance of the designed operating capacity of the lubrication system,
• stable mounting in factory body points and lower covers. By maintaining the original specification, installation is predictable, and the risk of compatibility issues is significantly reduced.

Characteristics of the used component

The offered oil sump comes from disassembly, which means it is a used part that retains its factory design and purpose. This type of component is particularly attractive in situations where mechanical damage has occurred (e.g., impact from below, local corrosion, deformation) and a replacement with a part consistent with the manufacturer's original design is necessary. Using a used OEM component allows for maintaining the consistency of the lubrication system with other factory sub-assemblies, without the need for adaptation or modification. This is a solution often chosen for high-value engine repairs, where both technical correctness and control of service costs are important.

Application in service and 4.2 FSI engine repairs

Replacing the lower oil sump is recommended, among other things, after mechanical damage, interference with the crankshaft system, or during major engine repairs. In the case of the Audi RS4 B8 with the 4.2 FSI CFSA engine, using an original oil sump allows for maintaining the lubrication system operating parameters provided by the manufacturer, which is important for the durability of the bearings, crankshaft, and timing components. Choosing the right oil sump is also important from a diagnostic point of view – correctly designed interior geometry reduces the risk of temporary oil pressure drops during dynamic driving, thereby reducing the load on critical engine components.

Audi oil sumps – expansion and system modernization

If you are planning a comprehensive repair or modernization of the engine area in your Audi and need other components from the same group, such as additional sumps, covers, or mounting elements, check out the available parts in the Audi Oil sumps category.

Why choose original used OEM components

For such demanding units as the 4.2 FSI CFSA in the Audi RS4 B8, the use of original components has a direct impact on engine safety and the predictability of the lubrication system's behavior. A used OEM oil sump retains the manufacturer's design, which facilitates installation and limits the risk of improper fitment characteristic of aftermarket replacements of uncertain origin. If you want to better understand the benefits of choosing original used parts, read the article Quality assurance and OEM safety – why are used original car parts the best choice for your car?, which discusses the technical, economic, and operational aspects of such a solution in more detail.