VW Volkswagen Transporter T6 Passat CC Oil Filter Housing 2.0 TDi 03L115389H

VW Volkswagen Transporter T6 Passat CC Oil Filter Housing 2.0 TDi is an original lubrication system component designed for 2.0 TDI diesel engines in Volkswagen vehicles. The robust construction of the housing ensures a stable fit for the oil filter cartridge and leak-proof routing of the lubricant, which promotes safe engine operation. It is a practical solution for users seeking factory-spec fitment and predictable oil system performance.

Specifications and technical data

• SKU: 03L115389H
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03L115389H
• Substitutable numbers: 03L115389H, 03L 115 389 H
• Part type: Oil Filter
• Category: Oil Filters

Purpose and function in the lubrication system

The oil filter housing in the 2.0 TDI engine is responsible for stable oil flow guidance through the filter cartridge and maintaining proper pressure in the oil gallery. In vehicles such as the Transporter T6 or Passat CC, this component works with the engine block's oil channels, minimizing the risk of leaks and pressure drops. A properly selected housing reduces flow turbulence, which translates into uniform lubrication of the bearings, camshaft, and other moving parts. Replacing a damaged or deformed housing is particularly important in diesel units, where thermal and pressure loads are higher than in many gasoline engines. Using an original solution allows for maintaining factory lubrication system parameters and facilitates subsequent maintenance, including regular oil filter cartridge replacements.

Construction and advantages of the original housing

The oil filter housing used in this reference was designed by the vehicle manufacturer with precise fitment to the engine block in mind. It includes an integrated filter cartridge socket and oil routing channels, which reduces the number of connections and potential leak points. As a result, installation is predictable, and the risk of assembly errors is lower compared to universal solutions. Key benefits of using the original housing include:

• factory fitment with the engine block and accessories,
• adaptation to the oil flow characteristics of the 2.0 TDI unit,
• easier maintenance during filter cartridge replacements,
• compliance with the manufacturer's service documentation. Thanks to this solution, the user receives a component that supports stable lubrication system operation and reduces the risk of problems resulting from mismatched aftermarket parts.

Condition, origin, and practical application

The presented oil filter housing comes from dismantling, which means it is a used part that retains the functionality required for further operation. Such components are often chosen by users who want to keep their vehicle in a factory-like configuration while optimizing repair costs. In the case of oil filter housings, it is particularly important that the mating surfaces and threads maintain proper geometry – these are responsible for tightness and correct installation. The housing will work well both for typical repairs after mechanical damage and for comprehensive lubrication system maintenance when other engine oil-related components are also being replaced. Using an original solution makes the mechanic's work easier, as it does not require adaptation or modification of additional parts.

Integration with the oil cooling system and engine durability

In modern diesel units such as the 2.0 TDI, the oil filter housing often works with channels leading oil to the oil cooler or heat exchanger. Proper operation of this area has a direct impact on the oil operating temperature, and thus on engine longevity. Leaks or flow disturbances can lead to overheating of the lubricant, which accelerates oil degradation and increases wear on moving parts. If you want to better understand how the cooling system and thermal management affect engine durability, it is worth reading an article describing the relationship between operating temperature and engine lifespan: Engine cooling system – overheating, repair, and used radiators.

Support for selection and lubrication system upgrades

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other components from the same group, such as oil filter cartridges, housing gaskets, or additional mounting hardware, check out the available parts in the Volkswagen Oil Filters category. For users who are simultaneously working on other vehicle components, materials regarding suspension repair cost optimization and improving ride comfort, available in the form of a guide, may also be useful: suspension knocking and cheaper chassis regeneration.

Summary

VW Volkswagen Transporter T6 Passat CC Oil Filter Housing 2.0 TDi is a practical choice for those who want to restore the proper operation of the lubrication system in a diesel engine while maintaining factory fitment and oil flow parameters. The original design supports stable engine performance, and using a component from dismantling allows for reduced service costs without sacrificing compatibility with the manufacturer's solutions.