Volkswagen Golf MK5 Audi A3 8P Tdi Oil Filter Housing Oil Cooler 045115389E

Volkswagen Golf MK5 Audi A3 8P Tdi Oil Filter Housing Oil Cooler is a complete, used unit from the Oil coolers and lines group, designed for diesel engines. The component combines the function of an oil filter housing and an oil cooler, ensuring stable operating conditions for the diesel power unit and efficient heat dissipation from the lubrication system.

Specifications and technical data

• SKU: 045115389E
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 045115389E
• Substitutable numbers: 045115389E, 045 115 389 E
• Fuel type: Diesel
• Category: Engine Oil Coolers & Lines

Purpose and function in a diesel engine

The presented component has been designed to work with Diesel engines, where thermal and pressure loads are higher than in petrol units. Integrating the filter housing with the oil cooler allows for a compact installation in the engine bay and reduces the number of connections, which promotes system tightness and stable oil pressure.

Proper oil cooling is crucial for the durability of the turbocharger, bearings, and the entire lubrication system. This type of solution helps keep the oil within an optimal temperature range, which translates into more consistent engine performance parameters and a lower risk of overheating during intensive use.

Construction of the oil filter housing + oil cooler assembly

Combining the filter housing with the heat exchanger creates a rigid, compact module that facilitates installation in vehicles such as the Golf MK5 or Audi A3 8P TDI. The design includes oil flow channels and a heat exchange section, where the cooling medium absorbs excess thermal energy from the engine oil. As a result, the lubrication system maintains stability even during long highway drives or under heavy load.

The modular solution limits the number of potential leak points while simplifying maintenance – access to the oil filter is organized in one place, which reduces periodic service time and simplifies workshop procedures.

Benefits of using an original Volkswagen component

The original design from the Volkswagen group ensures proper fitment to the lubrication and cooling system in Golf MK5 and Audi A3 8P TDI models. Factory-spec oil channel geometry and a properly selected heat exchange surface allow for maintaining the parameters specified by the vehicle manufacturer, which is particularly important for diesel engines operating under high loads.

A used OEM component is a cost-effective solution that is technically consistent with the rest of the system. For workshops and users, this means easier installation, no need for adaptations, and predictable component behavior in the long term.

Condition, installation, and service application

The component is offered in a used condition, allowing for an economical repair of the lubrication and oil cooling system in cars with a TDI engine. It is suitable both for replacing a damaged oil cooler and for comprehensive engine service when simultaneous intervention in the filter housing and oil cooling system is required.

Due to the integrated design, installation involves correctly connecting the oil and cooling lines and properly seating the module on the engine. Following the vehicle manufacturer's service procedures allows for restoring proper oil circulation and efficient heat dissipation, which has a direct impact on the engine's lifespan.

Technical support and related components

If you are planning a comprehensive repair or upgrade of the engine area in your Volkswagen and need other elements from the same group, such as additional oil coolers, oil lines, or mounting hardware, check the available parts in the Volkswagen oil coolers and lines category.

To better understand the importance of an efficient cooling system in the context of engine operation, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses the impact of high temperatures on engine performance and the possibilities for economical repair using used components.