Audi A4 B8 A5 8T Q5 8R Oil Filter Housing Cover 2.0 TDI 03N115389H

Audi A4 B8 A5 8T Q5 8R Oil Filter Housing 2.0 TDI 03N115389H is an original lubrication system component from the Oil Coolers and Hoses group, designed for 2.0 TDI diesel engines in popular Audi models. This used, factory housing ensures proper oil flow and stable filter mounting, contributing to the safe operation of the powertrain. It's a solution for drivers seeking a proven OEM part at a reasonable price, maintaining the manufacturer's intended design.

Specifications and technical data

• SKU: 03N115389H-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 03N115389H
• Substitutable numbers: 03N115389H, 03N 115 389 H
• Category: Engine Oil Coolers & Lines

Purpose and Function in the Lubrication System

The oil filter housing in a 2.0 TDI engine is responsible for securely seating the filter element and properly directing the oil flow within the engine block. In Audi A4 B8, A5 8T, and Q5 8R models, this component works with the lubrication and oil cooling system, influencing:

• maintaining adequate oil pressure in the system,
• stable filter mounting in its designated position,
• correct flow of the lubricating medium towards the oil channels,
• reducing the risk of leaks at the junction of the filter and the engine block.

By retaining its factory geometry and mounting points, the oil filter housing for Audi allows for seamless integration with the existing system, without the need for installation modifications.

Benefits of Using an Original Oil Filter Housing

Choosing an original housing from the Oil Coolers and Hoses group primarily guarantees a perfect fit for the specific 2.0 TDI engine version. In practice, this means:

• maintaining factory-level sealing at connections with the engine block and oil lines,
• compatibility with original oil filter elements designed for these units,
• correct placement of oil channels and connection ports,
• reducing the risk of installation errors typical for aftermarket parts with different geometries.

A used OEM part also offers a favorable compromise between cost and quality – you retain the original design solution while reducing expenses compared to a new component.

Condition, Verification, and Installation Aspects

The oil filter housing offered in this listing is in used condition, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. This type of component, with proper engine operation, is not a typical wear-and-tear part, making its reuse often technically justified.

During installation, it is recommended to:

• use a new seal and a new oil filter element,
• thoroughly clean the contact surface with the engine block,
• check threads and mounting points before tightening,
• verify system tightness after the initial engine start.

This approach minimizes the risk of leaks and allows for the full utilization of the offered housing's potential.

Why Choose a Used Audi OEM Part

For components like the oil filter housing, using a used OEM part is often a sensible service choice. You receive:

• a factory design engineered specifically for 2.0 TDI engines in Audi A4 B8, A5 8T, and Q5 8R,
• retention of original oil flow characteristics,
• the possibility of an economical lubrication system repair without compromising manufacturer quality.

If you want to better understand how cooling and lubrication system components work together under high temperatures, our guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings will be helpful. It discusses the impact of temperature on engine operation and ways to optimize service costs.

Expanding Your Audi Lubrication System Service

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other parts from the same group, such as additional oil lines, mounting elements, or housings that work with the oil cooler, check the available parts in the Audi Oil Coolers and Hoses category.