BMW F70 F74 F78 U10 U11 Mini U25 Water Coolant Hose Pipe Line B48R 5A5AED3

BMW Coolant Hose for B48R Engine is an original cooling system component designed for BMW F70, F74, F78, U10, U11 series models and Mini U25. Thanks to its factory geometry and connection diameter, the hose ensures stable coolant flow and proper cooperation with other system components. Using a used OEM part is a sensible choice for servicing modern units, allowing for the maintenance of technical consistency of the entire cooling system.

Specifications and technical data

• SKU: 5A5AED3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A5AED3
• Substitutable numbers: 5A5AED3, 17125A5AED3
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and Function in the Cooling System

This coolant hose operates within the B48R engine's liquid supply system, responsible for the controlled flow of coolant between selected system components. The appropriately shaped and sized hose minimizes pressure drops, contributing to the stable operating temperature of the power unit and the correct functioning of the thermostat and coolant pump.

Proper hose fitment for a specific body version and engine is crucial for:

• maintaining connection seal integrity at high operating temperatures,
• avoiding stress resulting from incorrect hose routing,
• preserving the coolant circulation designed by the manufacturer.

Benefits of Using an Original BMW Hose

Replacing a worn or non-original hose with an original coolant hose allows for the cooling system's operating parameters to be maintained in accordance with the manufacturer's specifications. The appropriate stiffness and flexibility of the material translate to secure mounting on spigots and resistance to vibrations generated by the engine and chassis.

The main advantages of using this component include:

• factory fitment for the B48R unit and the specified BMW and Mini models,
• preservation of the original hose routing in the engine bay,
• reduction of overheating risk due to leaks or kinks in the hose.

Component Condition and Service Application

The hose is a used, removed part offered as a used original BMW part. This type of component is suitable for standard replacement of a worn hose, as well as for repairs after a collision or intervention in the engine bay where restoring the factory cooling system layout is necessary. Choosing an original used part helps optimize service costs while maintaining compatibility with the factory installation.

Integration with Other Cooling System Components

The hose works in conjunction with other cooling system components such as the radiator, spigots, tees, and thermostat housings, forming a cohesive coolant flow system. Proper hose routing in the engine bay minimizes the risk of contact with hot or moving parts, which is important for the long-term reliability of the system. During installation, it is recommended to check the condition of the clamps and other hoses to restore full circulation seal integrity in a single service operation.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional coolant hoses, pipes, or tubes, check the available parts in the BMW Hoses, Pipes, and Tubes category.

For users interested in conscious servicing and the thoughtful and safe use of recycled parts, it is worth reading the guide on eco-tuning and the impact of recycling on vehicle operation: Eco-Tuning in Practice: How to Increase Performance While Reducing Carbon Footprint with Recycled Parts.