BMW E81 E87 E90 E91 E92 Coolant Expansion Tank Bottle Reservoir Petrol 7567462

BMW E81 E87 E90 E91 E92 Coolant Expansion Tank Bottle Reservoir is an original cooling system component designed for BMW vehicles with petrol engines. It ensures stable system operation by monitoring coolant levels and compensating for volume changes. This is a practical solution for users looking to restore proper engine performance parameters after a failure or wear of the previous tank.

Specifications and technical data

• SKU: 7567462
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7567462
• Substitutable numbers: 7567462, 17137567462, 7640514, 17137640514, 7607482, 17137607482, 7543026, 17137543026, 7519368, 17137519368
• Fuel type: Petrol
• Part type: Coolant Expansion Tank
• Category: Expansion & Overflow Tanks

Purpose and function in the cooling system

The presented expansion tank is a cooling system component used in popular BMW 1 and 3 series E-generation models. Its task is to take in excess coolant as temperatures rise and allow it to return to the circuit once it cools down. This allows the system to maintain stable operating pressure and ensures the engine runs within the intended temperature range.

A properly selected expansion tank minimizes the risk of engine overheating, coolant leaks, and air locks in the system. Replacing a worn or leaking part with a functional OEM component helps restore proper coolant circulation and reduces thermal stress on the engine.

Compatibility and fitment for BMW

The component has been designed with the BMW cooling system architecture in mind, maintaining the correct shape, port placement, and mounting points. As a result, installation is straightforward, without the need for system modifications or additional adapters. Using an original solution helps maintain factory hose geometry and proper coolant flow.

The product features a dedicated OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with specific engine versions and vehicle model years. Before purchasing, it is recommended to compare the markings with service documentation or the removed part to ensure full compatibility.

Characteristics of the used component

The offered expansion tank belongs to the Expansion tanks category and is a used part. This means it was previously in operation in a vehicle but is still suitable for further use after a proper condition assessment. This type of component is a good solution for users seeking a reasonable compromise between repair costs and maintaining the manufacturer's original specifications.

Choosing a used OEM part often allows for better fitment than many low-budget aftermarket replacements, while reducing expenses compared to a brand-new part. This is a practical option for maintenance repairs when restoring the efficiency of the cooling system without excessive budget strain is key.

Application in petrol vehicles

The tank is intended for use with engines powered by petrol fuel. The cooling system in such engines operates within a specific range of temperatures and pressures, and a properly selected expansion tank is a crucial element ensuring the stability of these parameters. Proper component operation affects the durability of seals, hoses, and other cooling system sub-assemblies.

When replacing, it is worth paying attention to the condition of the supply hoses, the cap, and the mounts to ensure the entire system is cohesive and leak-free. A properly functioning expansion tank reduces the risk of coolant loss and makes it easier to monitor levels during daily vehicle operation.

Benefits of using an original BMW tank

Using an original expansion tank in a BMW offers a number of practical benefits:

• maintaining factory fitment to the cooling system and chassis,
• consistency with hose design and mounting points,
• easier diagnostics and service due to compliance with manufacturer documentation,
• reduced risk of leaks resulting from poor fitment.

For users considering the choice between a new and a used part, an article comparing both options may be helpful – more information can be found in the material New or used? A comparison of car part costs and quality.

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 out the available parts in the BMW Expansion tanks category.