Intake Muffler BMW F20 F21 F30 F31 LCI B38 Air Filter Box Housing Petrol 8647449

Visual condition of the part

The product shows signs of use visible in the photos.

Intake Muffler BMW F20 F21 F30 F31 LCI B38 Air Filter Box Housing is an original intake system component designed for BMW models with petrol engines. It ensures stable mounting of the filter element, proper airflow to the engine, and helps maintain the correct operating parameters of the power unit. Thanks to its factory design, the Intake Muffler BMW F20 F21 F30 F31 LCI B38 Air Filter Box Housing guarantees compatibility with standard equipment and predictable performance during operation.

Specifications and technical data

• SKU: 8647449-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8647449
• Substitutable numbers: 8647449, 13718647449, 8654055, 13718654055, BG
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter housing in the version used in the BMW F20 and F30 LCI is responsible for tightly sealing the filter element and directing the airflow sucked into the petrol engine. A properly selected housing:

• stabilizes airflow before the mass air flow sensor and intake manifold,
• limits the intake of contaminants from the engine bay,
• minimizes the risk of intake system leaks,
• supports the maintenance of correct fuel-air mixture parameters.

As a result, the petrol engine maintains predictable operating characteristics, and the ECU is provided with stable conditions for measuring airflow.

Benefits of using an original BMW housing

Using a factory air filter housing in the BMW F20/F30 LCI translates into a number of practical assembly and operational advantages. The most important include:

• Precise fit to the engine bay – original mounting points, cable routing, and intake ducts are preserved.
• Compatibility with the standard air filter element and intake accessories,
• Reduced risk of incorrect installation thanks to the factory geometry of the component,
• Ability to maintain standard engine operating parameters without the need for software modifications.

Choosing an original BMW air filter housing is particularly important for daily-driven vehicles, where consistent performance and ease of maintenance are key.

Product characteristics and condition

The offered air filter housing comes from dismantling and is a used part, which allows for economical repair of the intake system while maintaining the manufacturer's original specifications. This type of part is a good solution in situations where:

• mechanical damage to the existing housing has occurred (cracks, broken clips),
• there are leaks resulting in engine performance errors,
• replacement of the component is necessary after a collision or interference in the engine bay.

A used BMW air filter housing allows you to restore the correct geometry and tightness of the intake system without the need to invest in a new component.

Assembly and operational tips

When replacing the air filter housing in a BMW F20/F30 LCI, it is worth paying attention to several technical aspects:

• checking the condition of seals and mounting elements,
• correct routing of vacuum lines and sensors around the housing,
• verifying the correct seating of the filter element after installation,
• checking for any leaks in the connections with the intake ducts.

Careful installation allows you to fully utilize the advantages of the factory design and reduce the risk of airflow-related errors.

Expanding the BMW intake system

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional intake ducts, air hoses, or other housings for different engine versions, check out the available parts in the BMW Air Filter Housings category.

For drivers interested in improving ergonomics and driving comfort, interior elements can also be a good complement to car upgrades. You can find more on this topic in the article Interior metamorphosis: how branded seats from dismantling affect comfort and car value, which discusses the practical aspects of using branded used seats.