Volkswagen Passat B8 Golf Mk7 Oil Filter Housing 2.0 TDI 03N115389K

Volkswagen Passat B8 Golf Mk7 Oil Filter Housing 2.0 TDI is an original lubrication system component designed for 2.0 TDI diesel engines in Volkswagen vehicles. The housing design ensures stable oil flow and proper seating of the filter cartridge, which translates into safe operation of the power unit. This used component from the Lines, Hoses and Pipes category is a solution for users looking for a factory fit without the need to resort to replacements of unknown origin.

Specifications and technical data

• SKU: 03N115389K
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 03N115389K
• Substitutable numbers: 03N115389K, 03N 115 389 K
• Category: Hoses, Lines & Pipes

Purpose and function in the lubrication system

The oil filter housing in the 2.0 TDI engine is responsible for the sealed routing of the lubricating medium between the engine block and the filter cartridge. A properly selected component:

• maintains stable oil pressure in the operating circuit,
• ensures proper sealing of the filter seat,
• minimizes the risk of leaks in the area of connections with lines and oil channels,
• facilitates periodic maintenance thanks to predictable geometry and factory mounting points.

For 2.0 TDI units, the use of an original housing is important for engine durability and maintaining operating parameters in accordance with the manufacturer's specifications.

Construction and fit for Volkswagen Passat B8 / Golf Mk7

The housing has been designed specifically for the engine bay architecture of the Passat B8 and Golf Mk7 models with the 2.0 TDI unit. This means:

• factory mounting points matched to the engine block and adjacent components,
• oil channel routing consistent with the original design,
• compatibility with the lubrication system lines, hoses, and pipes provided by the manufacturer.

Such a fit reduces the risk of installation stress, leaks, and future service problems. For the user, this means predictable lubrication system behavior and easier maintenance.

Benefits of using an original oil filter housing

Using an original oil filter housing in a 2.0 TDI engine brings a number of practical benefits:

• Factory geometry and threads – secure fit for the filter cartridge and associated components.
• Stable oil flow – preservation of the flow channels designed by the manufacturer.
• Compatibility with the line system – proper connection with components from the Lines, Hoses and Pipes group in a given model.
• Possibility of use in the process of repair or modernization of the lubrication system without the need for structural modifications.

For workshops and individual users, this means predictable installation and a reduction in the risk of operational problems resulting from inaccurate part fitting.

Component condition and service application

The oil filter housing is offered as a used part, which allows for economical repair while maintaining the original manufacturer's specification. This type of component will work especially well in situations where:

• mechanical damage to the existing housing has occurred (e.g., cracks, thread damage),
• there are leakage problems in the oil filter area,
• it is necessary to replace the component as part of a larger overhaul of the 2.0 TDI unit.

The selection of the correct housing for a specific engine configuration and vehicle model should always be confirmed based on catalog data and manufacturer specifications.

Related lubrication system components and additional materials

If you are planning a comprehensive repair or modernization of the engine area in your Volkswagen and need other components from the same group, such as flexible oil lines, rigid oil supply pipes, or sections of return hoses, check the available parts in the Volkswagen Lines, Hoses and Pipes category.

For major service work within the power unit, especially when you are considering replacing or overhauling the engine, practical tips on assessing the condition of components may be helpful. In such a case, it is worth reading the guide Buying a used engine: 5 things you must check before installation, which helps in making an informed service decision.