BMW 1 3 Series E87 E90 E91 2 Petrol N52 Air Filter Box Intake Silencer 7541736

BMW 1 3 Series E87 E90 E91 2 Petrol N52 Air Filter Box Intake Silencer is a factory intake system component designed for BMW 1 and 3 Series petrol engines with the N52 unit. It is responsible for the stable mounting of the filter element and proper airflow routing to the intake manifold, which promotes smooth engine operation and maintains factory performance parameters. Thanks to a design consistent with the manufacturer's specifications, this BMW air filter box allows for the seamless replacement of a damaged component without interfering with other sub-assemblies.

Specifications and technical data

• SKU: 7541736-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7541736
• Substitutable numbers: 13717541736, 7541736
• Fuel type: Petrol
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter box in BMW E87 and E90 models with the N52 engine plays a key role in protecting the power unit from contaminants sucked in from the environment. It ensures a tight seating of the filter element, maintaining proper airflow to the petrol engine and limiting the risk of dust, sand, or fine particles entering the combustion chamber.

A properly selected housing helps maintain:

• stable engine performance parameters under various loads,
• correct airflow characteristics in the intake system,
• compliance with the factory geometry of the BMW engine bay.

Advantages of using an original BMW housing

Using a component from the Air filter boxes group dedicated to the BMW E87/E90 with the N52 engine allows you to avoid problems typical of aftermarket replacements with inaccurate fitment. The OEM design ensures:

• precise fit to the mounting points and brackets in the engine bay,
• correct routing of intake ducts without the need for modifications,
• compatibility with standard hoses, sensors, and intake accessories.

As a result, installation is straightforward, and the intake system retains the parameters intended by the manufacturer, which promotes stable operation of the petrol unit and reduces the risk of unwanted power loss.

Condition, selection, and technical aspects

The offered housing is a dismantled part, which allows for an economical replacement while maintaining the original BMW specification. This is a practical solution in the event of mechanical damage, cracks, or wear of the factory housing mounts in cars with the N52 petrol engine.

When selecting an air filter box for a BMW E87 or E90, it is worth paying attention to:

• compatibility with the engine type (in this case, the N52 petrol engine),
• the mounting layout and shape of the body in relation to the engine bay,
• compatibility with the existing intake duct and accessories.

Thanks to the preservation of the factory geometry of the component, there is no need for additional adaptation of the intake system after installation, and periodic maintenance (filter element replacement) remains simple and predictable.

BMW air filter boxes – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other components from the same group, such as additional housings, intake ducts, or filter covers, check out the available parts in the BMW air filter boxes category.

Safety and technical knowledge

When working in the engine bay – especially near the intake system and accessories – it is worth following proven service procedures and technical knowledge. For users interested in a broader perspective on selecting used components in critical vehicle systems, the following guide article may be helpful: Second-hand braking system: how to safely select discs, calipers, and ABS?. Although it concerns a different system, it demonstrates good practices when purchasing used car parts, which can also be applied to other areas of the vehicle.

Summary

BMW 1 3 Series E87 E90 E91 2 Petrol N52 Air Filter Box Intake Silencer is a practical solution for drivers who want to restore the proper operation of the intake system in their car while maintaining factory specifications. The original design, matched to the N52 petrol engine, facilitates installation, supports stable power unit operation, and allows the air supply system to be kept in a condition consistent with the manufacturer's requirements.