Water Hose BMW X3 F25 X4 F26 B47 Coolant Expansion Tank Pipe Line 8514071

BMW X3 F25 X4 F26 B47 Expansion Tank Water Hose 8514071 is an original cooling system component designed for BMW X3 F25 and X4 F26 models with the B47 engine. This precisely molded hose ensures a stable connection between the expansion tank and the rest of the system, supporting proper coolant circulation and safe engine operation.

Specifications and technical data

• SKU: 8514071-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8514071
• Substitutable numbers: 8514071, 17128514071, 8514057
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The expansion tank water hose in BMW X3 F25 and X4 F26 with the B47 engine is responsible for the stable flow of coolant between the tank and other system components. A correctly selected hose minimizes the risk of air ingress, facilitates maintaining the proper fluid level, and supports the optimal operating temperature of the power unit.

The original geometry of the hose guarantees correct routing in the engine bay, maintaining appropriate bending radii, and collision-free placement relative to adjacent components. This reduces material stress and the risk of abrasion during operation.

Advantages of Using an Original BMW Hose

Using a dedicated water hose for the cooling system in BMW X3 F25 and X4 F26 B47 allows for the preservation of the system's original operating parameters. Key benefits include:

• secure fit to the expansion tank spigots and other system components,
• appropriate stiffness and flexibility of the hose, adapted to the thermal and mechanical conditions in the engine bay,
• preservation of the original hose routing, which facilitates installation and servicing,
• consistency with BMW's original cooling system concept.

Therefore, replacing a worn or leaking hose with an original part from the Cooling System Hoses and Pipes category helps restore stable engine operation and reduce the risk of overheating.

Product Characteristics and Condition

The offered water hose is a used part from disassembly, making it an attractive solution for users looking for technically sound parts at a reasonable price. The preserved original BMW construction facilitates trouble-free installation in place of the factory hose, without the need for system modifications.

Choosing a used OEM component is particularly beneficial for routine repairs where maintaining compliance with factory specifications while optimizing service costs is a priority.

Installation and Operational Tips

When replacing the expansion tank water hose in BMW X3 F25 or X4 F26 B47, it is worth paying attention to several technical aspects:

• checking the condition of the spigots and mounting clamps before installing the new hose,
• correctly routing the hose according to the factory path,
• thoroughly bleeding the cooling system after completing the work,
• verifying for leaks after the engine reaches operating temperature.

This approach allows for the full utilization of the original hose's potential and maintains the stable thermal parameters of the power unit in daily operation.

Cooling System Service Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other parts from the same group, such as additional pipes, return hoses, or radiator outlets, check the available parts in the BMW Cooling System Hoses and Pipes category.

For a better understanding of the impact of a functional cooling system on engine durability and the consequences of overheating, it is worth reading the article: Engine Cooling System – Overheating, Repair, and Used Radiators. This provides practical knowledge for planning service on a BMW X3 F25 or X4 F26 with the B47 engine.