Audi TT 8J VW Golf Mk6 Engine Oil Filter Housing Cover Cooler 2.0 TDI 045115389K

Audi TT 8J VW Golf Mk6 Engine Oil Filter Housing Cover Cooler is a specialized component of the lubrication and oil cooling system designed for diesel engines. The combination of the filter housing and oil cooler ensures stable operating conditions for the power unit and helps maintain the proper oil temperature under demanding road conditions. This solution allows for efficient maintenance and reduces the risk of oil overheating in the diesel engine.

Specifications and technical data

• SKU: 045115389J
• Mark: Audi
• Condition: Used
• OEM Part Number: 045115389J
• Substitutable numbers: 045115389J, 045 115 389 J
• Fuel type: Diesel
• Category: Oil Filters

Purpose and function in the lubrication system

The filter housing integrated with the oil cooler is responsible for directing oil through the filter element and cooling it effectively. In a diesel engine operating under higher thermal loads, stable oil temperature is crucial for protecting the turbocharger, bearings, and other moving parts. The use of this design in Audi TT 8J and VW Golf Mk6 models allows for compact routing of oil channels and easier integration with the engine cooling system.

Construction and benefits of the integrated oil cooler

Combining the filter housing with the oil cooler in a single body reduces the number of connections, hoses, and potential leak points. In practice, this means:

• a more organized layout in the engine bay,
• efficient oil flow through the filtering and cooling sections,
• better control over oil temperature under typical road conditions and at higher loads.

Thanks to this design, the lubrication system operates under more predictable conditions, which helps maintain oil viscosity parameters and reduces the risk of thermal degradation.

Application in 2.0 TDI diesel engines

The component has been designed for diesel units where oil serves not only a lubricating function but also a partial cooling one. In 2.0 TDI engines, a properly selected filter housing with an oil cooler:

• supports the maintenance of proper oil pressure across the entire RPM range,
• helps reduce the loss of lubrication efficiency at high operating temperatures,
• promotes even oil distribution in critical engine zones.

This solution is particularly important in vehicles used on long journeys, where the diesel engine operates under constant load for extended periods.

Product characteristics and condition

The presented filter housing with oil cooler belongs to the Oil filters group and is an Audi brand component, which ensures factory-standard geometry and mounting points. The product is offered as used, allowing for an economical replacement of a damaged housing while maintaining compatibility with the original design. This type of part is a good choice in situations where the existing housing has suffered mechanical damage or there are leakage issues within the body.

Technical support and additional information

For components responsible for oil cooling, it is worth paying attention to the general condition of the engine cooling system and proper coolant circulation. To better understand the impact of the oil cooler and the entire cooling system on the durability of the power unit, it is worth checking out the guide Engine cooling system – overheating, repair, and used radiators, which discusses typical symptoms of overheating and the importance of efficient heat exchangers.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as oil filter inserts, filter bodies, or additional filter modules, check the available parts in the Audi oil filters category.