BMW F80 M3 F82 F83 M4 Additional Auxiliary Cooler Radiator Right O/S 2284604

The BMW 3 / 4 Series F80 M3 F82 M4 Right Side Auxiliary Cooler is an original cooling system component, specifically designed for high-performance M versions. This component supports the main radiator, ensuring stable thermal conditions during dynamic driving and intense engine load, which translates to safer engine operation and consistent performance. Thanks to its factory fitment to the M3/M4 body structure, installation is precise and predictable.

Specifications and technical data

• SKU: 2284604-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2284604
• Substitutable numbers: 17112284604, 2284604
• Location on the vehicle: Right
• Category: Other Air & Fuel Delivery

Purpose and Function in the BMW M3 / M4 Cooling System

The auxiliary cooler described is dedicated to the sporty BMW 3 and 4 Series models in the F80 M3 and F82 M4 versions, where the cooling system must cope with higher thermal loads than in standard variants. This component operates on the right side of the vehicle, supporting the main cooling circuit and stabilizing coolant temperature under track conditions, highway driving, and frequent acceleration. Thanks to the use of an additional heat exchanger, the cooling system better handles:

• dissipating excess heat from the engine at high RPMs,
• maintaining consistent power characteristics during extended driving sessions,
• reducing the risk of overheating in demanding operating conditions.

Construction, Fitment, and Right-Side Installation

The cooler is constructed as an OEM part for the specific front-end architecture of the F80/F82, taking into account hose routing, airflow, and aerodynamic covers. Its placement on the right side of the vehicle ensures optimal utilization of the airflow entering through the bumper intakes, improving heat exchange efficiency. Key construction advantages include:

• factory mounting points, facilitating installation in place of the original component,
• compatibility with the standard hose and accessory system,
• preservation of the original airflow geometry in the front compartment.

Benefits of Using an Original Auxiliary Cooler

In sporty BMW M3 and M4 models, stable engine operating temperature is crucial for component durability and consistent performance. The use of the original right-side auxiliary cooler offers a range of practical benefits:

• Improved Temperature Control – the additional heat exchange surface unloads the main radiator, which is particularly important for power modifications or intense driving.
• Consistency with Factory Design – preserves the original cooling system concept developed for M versions, without the compromises typical of universal replacements.
• Seamless Integration – no need for modifications to mountings or hose routing, which reduces service time and minimizes the risk of leaks.

Condition, Verification, and Service Application

This component comes from the group of used BMW parts, allowing for economical repair or restoration of the original cooling system configuration in intensively used vehicles. This type of part is particularly useful for:

• repairs after front-end collisions,
• cooling system service after overheating,
• restoring the car's original specification after unsuccessful modifications. Selecting the correct component is facilitated by the BMW marking and its assignment to a specific factory reference and interchangeable numbers, visible in the technical specifications section. This allows for precise verification of compatibility with your M3 or M4 model.

Expanding Cooling System and Engine Bay Service

If you are planning a comprehensive repair or upgrade of the engine bay in your BMW and need other parts from the same group, such as coolant hoses, additional heat exchangers, or expansion tanks, check the available parts in the Other BMW Parts category. To compare manufacturers' approaches to designing high-performance powertrains and their accompanying cooling and braking systems, it is worth reviewing an analysis of sporty models from another brand – this is discussed in detail in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which illustrates the importance of appropriately selected components in high-performance cars.