Air Intake Hose BMW E90 E91 E92 LCI N57 Filtered Air Pipe Line 7806371

Air Intake Hose BMW E90 E91 E92 LCI N57 Filtered Air Pipe Line is an original intake system component designed for 3 Series models with the N57 diesel engine. Thanks to its factory geometry and precisely selected diameter, it ensures stable airflow to the engine, supporting the proper operation of the power unit. It is a practical solution for users looking for a proven air pipe tailored to the specifics of a modern BMW diesel engine.

Specifications and technical data

• SKU: 7806371
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7806371
• Substitutable numbers: 13717806371, 7806371
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The presented air hose is a component from the Lines, hoses and pipes group, responsible for transporting air within the intake system in BMW 3 Series E90, E91, and E92 LCI (facelift) models with the N57 engine. A properly selected pipe minimizes pressure drops, reduces the risk of leaks, and supports uniform cylinder filling, which is important for the smooth operation of a diesel engine.

In the design of modern diesel engines, stable airflow is crucial for maintaining proper boost, correct air-fuel mixture, and meeting exhaust emission parameters. Using the correct air pipe helps avoid issues such as power loss, smoke, or error codes stored in the engine control unit.

Benefits of using an original BMW air pipe

Choosing an original air hose dedicated to a specific generation and type of BMW engine translates into a number of practical advantages:

• factory fit for the intake system in E90, E91, E92 LCI models with the N57 unit,
• preservation of the airflow path designed by the manufacturer,
• reduction of the risk of leaks resulting from mismatched diameters or shapes,
• stable cooperation with diesel engine accessories, including the turbocharger and fuel injection control system.

As a result, the pipe is a functional solution both for standard replacement of worn parts and for repairs after intake system failures, where restoring factory flow parameters is essential.

Performance characteristics and installation

The element has been designed to operate in the demanding thermal and pressure conditions typical of turbocharged diesel engines. The appropriately selected material of the pipe ensures resistance to temperature changes and vibrations generated by the engine, which reduces the risk of cracks and leaks during operation.

The pipe is intended for installation in place of the factory component, which facilitates the mechanic's work and shortens service time. Maintaining the original geometry allows for secure routing of the hose in the engine bay, without the need for additional modifications or adjustments to the mounts.

Product condition and service application

The offered air hose is a secondary market component in used condition, making it a reasonable cost-effective alternative to new parts while maintaining factory specifications. Such components are frequently used in professional workshops specializing in BMW service, especially for repairs where it is crucial to restore proper patency and tightness of the intake system without interfering with its design.

Before installation, it is recommended to perform a standard visual inspection of the pipe and seals, and then correctly seat it in the factory mounting points, which will ensure stable operation over a long period of use.

Expanding the BMW intake system

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional intake hoses, vacuum lines, or breather pipes, check out the available parts in the BMW Lines, hoses and pipes category.

If you want to better understand how to take care of electronic systems in your car and effectively use dismantled parts when servicing 3 and 5 Series models, it is worth checking out the practical tips included in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using dismantled parts?.