BMW 1 3 Series E82 E90 E91 Expansion Tank Oil Cooler Coolant Pump Hose 7797260

BMW 1 3 Series E82 E90 E91 Expansion Tank Oil Cooler Coolant Pump Hose are original cooling system components from the Lines, hoses and pipes group, designed for use in selected BMW 1 and 3 Series models. They ensure stable coolant flow between key engine components, which translates into predictable engine operation and safe thermal conditions.

Specifications and technical data

• SKU: 7797260
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797260
• Substitutable numbers: 17127797260, 7797260, AS
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The set of water cooling pipes in the version dedicated to the BMW E82 and E90 is responsible for the precise routing of coolant between cooling system elements. Properly shaped pipe sections minimize the risk of kinking, reduce flow drops, and help maintain a stable engine operating temperature under various load conditions.

The component belongs to the Lines, hoses and pipes group, which means it is designed for resistance to temperature changes, pressure, and typical vibrations occurring in the engine compartment. As a result, the cooling system maintains its tightness and predictable operating parameters for a long time.

Original origin and fitment for BMW

The water cooling pipes have been developed by the manufacturer for specific BMW platforms, ensuring proper routing relative to the engine block, radiator, and other components. The original geometry and mounting points facilitate installation and reduce the need for additional modifications or adjustments.

Thanks to the use of a component from the BMW family, factory-fit with brackets, clamps, and other cooling system elements is maintained, which reduces the risk of leaks and unwanted material stress. This solution is particularly beneficial when servicing vehicles operated intensively or in varied climatic conditions.

Performance characteristics and installation

The presented set of water cooling pipes is a used item, which in practice means the possibility of an economical repair of the cooling system while maintaining the original installation specification. This is a good solution for users who want to maintain compliance with the factory design without having to resort to cheaper, unverified replacements.

During installation, it is recommended to:

• verify the condition of cooperating clamps and mounting brackets,
• check for leaks after the first engine start,
• properly bleed the cooling system after replacing the component.

This approach allows you to fully utilize the potential of the part and reduce the risk of needing to intervene in the system again in the near future.

Integration with other BMW cooling system elements

The water cooling pipes work directly with the radiator, connectors, thermostat, and other coolant lines. Replacing this element is often performed in parallel with the service of other system components, such as flexible hoses, fittings, or additional pipe sections.

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 flexible cooling lines, return hoses, or additional fluid routing pipes, check the available parts in the BMW Lines, hoses and pipes category.

Summary and additional service information

BMW 1 3 Series E82 E90 E91 Expansion Tank Oil Cooler Coolant Pump Hose is a practical solution for users who want to restore proper coolant circulation while maintaining the manufacturer's original design concept. Using a component from this group helps maintain a stable engine operating temperature, which has a direct impact on engine durability and operational comfort.

For drivers interested in optimizing service costs and making informed choices regarding used parts, practical tips on the secondary market may be useful – you can find them in the article Repairing a Volkswagen for pennies? Discover how to save on original car parts, which discusses universal principles for choosing used parts, also useful in the context of servicing BMW vehicles.