BMW 3 4 Series F80 M3 F82 F83 M4 Radiator Expansion Coolant Tank Bottle 2284601

BMW 3 4 Series F80 M3 F82 F83 M4 Radiator Expansion Coolant Tank Bottle is an original cooling system component from the Expansion tanks category, designed for the performance-oriented BMW M4 models of the F-generation. This used OEM component ensures factory-spec fitment, proper cooling system operation, and stable coolant pressure maintenance under demanding operating conditions. It is an ideal solution for users who expect a proven design and compliance with BMW's factory standards.

Specifications and technical data

• SKU: 2284601
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2284601
• Substitutable numbers: 17132284601, 2284601
• Category: Expansion & Overflow Tanks

Purpose and function in the BMW M4 cooling system

The expansion tank in the BMW M4 F80/F82/F83 is responsible for compensating for changes in coolant volume and stabilizing pressure throughout the system. A properly selected, original tank helps maintain the correct operating temperature of the engine, which is particularly important in high-power vehicles driven dynamically.

By using an original BMW expansion tank, you maintain the factory characteristics of the cooling system, minimize the risk of leaks, and reduce the possibility of engine overheating resulting from improper fluid circulation.

Benefits of using an original expansion tank

Choosing a used, original component from the Expansion tanks category for the BMW M4 F80/F82/F83 is a solution that combines controlled costs with the preservation of factory build quality. The OEM design is engineered for specific models, ensuring that it:

• provides proper fitment to cooling system mounts and hoses,
• maintains the correct operating volume of coolant,
• supports stable engine operation across a wide range of loads,
• reduces the risk of system bleeding issues.

For vehicles such as the BMW M4, where the cooling system operates under increased thermal load, the use of an OEM component is particularly important for durability and consistency of performance parameters.

Installation and operational characteristics

The offered expansion tank is a used part sourced from dismantling, which allows for the preservation of the original design specifications intended by BMW. As a result, installation proceeds in a manner similar to the factory process – without the need for modifications to mounts or hoses, while maintaining the correct positioning of ports and connection points.

In practice, this means that with a properly performed cooling system service (fluid replacement, bleeding, hose inspection), the tank can be integrated into the system to restore the correct operation of the entire setup. This is especially important for cars used both in daily driving and in more demanding conditions, such as on the track.

Integration with other BMW cooling system components

Replacing the expansion tank in a BMW M4 F80/F82/F83 often accompanies other service work within the cooling system – such as checking hoses, the radiator, or the thermostat. Using an original element from the same group allows for maintaining the structural consistency of the entire system and facilitates the diagnosis of potential faults in the future.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other elements from the same group, such as additional tanks, mounting hardware, or related components, check the available parts in the BMW Expansion tanks category.

Summary and technical recommendations

BMW 3 4 Series F80 M3 F82 F83 M4 Radiator Expansion Coolant Tank Bottle is a solution intended for users who want to restore the proper operation of the cooling system while maintaining BMW's factory standards. The used OEM component allows for a technically correct repair without compromising on fitment and functionality.

For BMW owners interested in a broader perspective on technical solutions used by the brand – including the design of all-wheel-drive systems and related components – the following article may be helpful: xDrive, 4Matic, quattro, or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW, which discusses, among other things, the specifics of servicing and selecting used components.