BMW F20 F30 F31 Air Filter Box Intake Silencer N13 Petrol Engine 7597582

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW F20 F30 F31 Air Filter Box Intake Silencer is an original intake system component designed for BMW F-series petrol engines with the N13 unit. It ensures stable mounting of the filter element, proper airflow guidance, and maintains intake airtightness, which translates into efficient engine operation and predictable performance. This used OEM part is a sensible choice for drivers looking for factory-fitment without the need to invest in a new component.

Specifications and technical data

• SKU: 7597582
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7597582
• Substitutable numbers: 13717597582, 7597582
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter box in the N13 petrol engine is responsible for guiding air from the intake to the throttle body and for securely seating the filter element. A properly selected housing:

• maintains the airtightness of the intake system, limiting the suction of unfiltered air,
• ensures the proper airflow required by the petrol unit,
• protects the filter element against mechanical damage and vibrations,
• minimizes intake noise, improving acoustic comfort.

Thanks to a design consistent with BMW factory standards, the housing works with stock mounts, hoses, and sensors, which facilitates installation and subsequent maintenance.

Benefits of using an original BMW housing

Using an original air filter housing in a petrol engine brings a number of practical benefits. The most important of these are:

• Precise fitment to the engine bay of BMW F20 and F30 models with the N13 unit, without the need for modifications.
• Compatibility with the stock intake system, which facilitates service and diagnostics.
• Stable mounting of the filter element, promoting even airflow.
• Reduction of the risk of leaks that could affect the operation of the mass airflow sensor and engine control unit.

For users who want to keep their car in a configuration close to factory specifications, such a housing is a safe and predictable service solution.

Condition, origin, and service application

The air filter housing comes from dismantling and is a used item, which allows for lower repair costs while maintaining the manufacturer's original specifications. This type of component is particularly useful in situations where:

• mechanical damage to the housing has occurred (cracks, broken mounts),
• there are leaks in the intake system,
• replacement is necessary after a collision or interference in the engine bay.

By choosing a used OEM housing, you gain a component consistent with the factory intake geometry, which is important for both engine durability and the stability of operating parameters.

Significance for the N13 petrol engine

In petrol units such as the N13, proper airflow and filtration are crucial for maintaining the correct air-fuel mixture. A functional air filter housing:

• supports even cylinder filling,
• helps maintain stable sensor readings in the intake,
• limits the ingress of contaminants that could accelerate the wear of engine components.

For users operating a BMW F20 or F30 with a petrol engine, the proper condition of the filter housing is a simple way to maintain predictable engine operation without interfering with electronics or control maps.

Expansion of the intake system in BMW

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 intake ducts, air hoses, or additional mounting elements, check out the available parts in the BMW Air Filter Housings category.

For drivers interested in a broader car upgrade, including improving ergonomics and driving comfort, a guide on interior equipment may also be helpful – you can find more information in the article Interior metamorphosis: how branded seats from dismantling improve comfort and car value.