BMW F06 F10 F12 Expansion Tank Radiator Coolant Overflow Fluid Bottle 2284280

BMW F06 F10 F12 Expansion Tank Radiator Coolant Overflow Fluid Bottle is an original cooling system component designed for BMW F-series models, ensuring stable engine operation across a wide range of loads. Thanks to its factory design and precise fitment to the manufacturer's installation, this expansion tank allows for a hassle-free replacement of a worn-out part and restores proper coolant circulation. It is a practical solution for users looking for a proven OEM part with maintained functionality.

Specifications and technical data

• SKU: 2284880-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2284880
• Substitutable numbers: 17112284880, 2284880, 17132284280, 2284280, BG
• Category: Expansion & Overflow Tanks

Purpose and function in the cooling system

The BMW coolant expansion tank is responsible for compensating for changes in fluid volume during engine heating and cooling, as well as maintaining the correct fluid level throughout the system. A properly functioning tank:

• stabilizes pressure in the cooling system,
• allows for easy monitoring of the fluid level,
• reduces the risk of engine overheating,
• supports even heat dissipation from the engine.

Thanks to a design consistent with BMW factory standards, this component works with original hoses, sensors, and the pressure cap, which facilitates installation and subsequent operation.

Construction and fitment for BMW F06, F10, F12

The presented tank has been designed specifically for the BMW F06, F10, and F12 platforms, which translates into the correct placement of connection ports and mounting points. This means that it:

• fits factory brackets in the engine bay,
• ensures compatibility with the stock hose system,
• maintains the original coolant flow geometry.

Such fitment reduces the need for modifications and allows for maintaining the factory cooling system performance characteristics, which is particularly important in modern, high-power-density BMW engines.

Characteristics of the used part

The offered expansion tank comes from the Expansion Tanks category and is a used item, which in practice means a favorable cost-to-functionality ratio while maintaining the original manufacturer's specifications. This type of component is a good choice when:

• the current tank shows leaks or cracks,
• a quick replacement of the part is necessary without investing in expensive aftermarket alternatives,
• you want to maintain the original design of the BMW cooling system.

Choosing a used OEM part allows you to maintain the technical consistency of the vehicle, which is important for both durability and subsequent service diagnostics.

Benefits of using an original BMW expansion tank

Using an original expansion tank in a BMW F06, F10, or F12 brings a number of practical operational benefits:

• maintaining cooling system operating parameters consistent with the manufacturer's design,
• reliable fitment with other system components (radiator, hoses, sensors),
• reduced risk of cooling system bleeding issues after replacement,
• easier identification and service handling due to compliance with BMW documentation.

For users considering broader modifications or service within the powertrain and cooling system, the material describing the differences between standard and sports BMW components may be helpful – more information can be found in the article BMW M Performance: what is the difference between BMW M components and standard ones?.

Cooling system expansion and related parts

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

Summary

BMW F06 F10 F12 Expansion Tank Radiator Coolant Overflow Fluid Bottle is a practical solution for drivers who want to restore the proper operation of the cooling system using an original BMW part. The used OEM component ensures proper fitment, maintenance of factory operating parameters, and consistency with other components, which translates into stable engine operating temperatures and safe vehicle operation.