BMW 3 4 Series F80 M3 F82 F83 LCI Air Duct Auxiliary Fan 2284794

The BMW 3 / 4 F80 M3 F82 F83 LCI Auxiliary Fan Air Duct is an original cooling system component, specifically designed for the sport versions of the 3 and 4 Series after the facelift. Thanks to its factory geometry, it ensures stable airflow guidance to the auxiliary fan, supporting efficient cooling of the powertrain and accessories. This is a practical solution for users who want to maintain proper engine bay aerodynamics in their BMW M3 or M4.

Specifications and technical data

• SKU: 2284794
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2284794
• Substitutable numbers: 17112284794, 2284794

Intended Use and Function of the Component

The presented air duct is dedicated to BMW 3 and 4 Series models in the F80 M3, F82, and F83 post-facelift (LCI) versions, where it works with the auxiliary cooling fan. Its task is to direct airflow in such a way that the fan can effectively support the radiator and other thermal components, especially during dynamic driving and high engine load.

A properly selected air duct reduces turbulence in the engine bay, improves the stability of operating temperatures, and reduces the risk of overheating in track conditions or intensive road use.

Advantages of Using an Original Air Duct

Using a factory BMW part ensures:

• precise fit to the mounting points and covers in the engine bay,
• compatibility with the design of the auxiliary fan and cooling system,
• maintenance of the airflow direction intended by the manufacturer,
• consistency with other aerodynamic elements in the front of the vehicle.

Thanks to this, the air duct works with other components without the need for modifications, which is particularly important in high-power cars like the M3 and M4. Choosing an original BMW part allows for maintaining the factory operating parameters of the cooling system and reduces the risk of improper installation.

Characteristics of a Used Part

The offered air duct is a used part, sourced from disassembly. This type of part, while maintaining correct geometry and mounting points, effectively retains full aerodynamic functionality. It is a sensible choice for users who want to maintain a high level of technical efficiency of their car while optimizing service costs.

For air guiding elements, maintaining shape, rigidity, and compatibility with factory brackets is crucial – these are precisely the features verified when selecting used parts in professional automotive stores.

Why Choose Used OEM for BMW M3 / M4

In sport BMW models, such as the F80 M3 or F82/F83 M4, the cooling system operates under demanding conditions. Choosing a used but original auxiliary fan air duct allows you to:

• maintain factory build quality and fit,
• avoid compatibility issues typical of cheap aftermarket parts,
• reduce repair or upgrade costs compared to a new OEM part.

If you want to better understand how to wisely use the used parts market and where such a solution offers the greatest savings, check out the article on how rising repair costs translate to the popularity of used OEM parts and how to reduce service expenses with them.

Practical Installation and Operational Tips

When replacing the auxiliary fan air duct in a BMW 3 and 4 Series M, pay attention to:

• the condition of the mounting points on the vehicle and adjacent covers,
• the correct positioning of the duct relative to the fan and radiator,
• the absence of interference with hoses, wiring harnesses, and other components in the engine bay.

A good addition to such an upgrade could be an inspection of other cooling system components and airflow improvement elements. If you are interested in a broader approach to car modification using proven aftermarket parts, check out the post dedicated to the best used parts for car tuning, where you will find practical inspiration for BMW-based projects.