BMW Mini Cooper One R50 R52 Petrol W10 Radiator Coolant Hose 7557167

MINI R50 R52 Water Hose Pipe 7557167 is an original cooling system component designed for Mini cars with gasoline engines. It ensures stable coolant flow between engine components, supporting the safe thermal operation of the powertrain and reducing the risk of overheating.

Specifications and technical data

• SKU: 7515489
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7515489
• Substitutable numbers: 17127515489, 7515489, 17127557167, 7557167, 51723451666, 3451666
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The water hose used in Mini R50 and R52 models operates within the coolant circuit, connecting key elements of the cooling system. It is responsible for controlled fluid flow between the engine and other components, which helps maintain the optimal operating temperature of the gasoline unit and stable operating conditions across various load ranges.

This part belongs to the Cooling System Hoses and Pipes group, making it structurally adapted for operation under pressure, at elevated temperatures, and in contact with coolant. The correct shape and diameter of the connections facilitate proper sealing and reduce the risk of leaks.

Benefits of Using an Original Mini Hose

Using an original Mini water hose to replace a worn or leaking component allows for the restoration of proper coolant circulation without the need for installation modifications. This solution is particularly beneficial for:

• repairs after cooling system failure (leaks, coolant level drops),
• preventive replacement of rubber and plastic components in older Mini models,
• comprehensive gasoline engine service when maintaining factory hose geometry is required.

Selecting a hose from the same construction group as the factory part minimizes the risk of misalignment, installation stress, and improper routing in the engine bay. This, in turn, translates to stable cooling system operation and reduced load on other components.

Condition, Verification, and Fitment

The offered hose is from the group of used Mini parts, allowing for economical repair while maintaining original manufacturer specifications. Before being offered for sale, components of this type are routinely verified for leaks, integrity of the spigots, and absence of damage that would disqualify them from further use.

To correctly fit the hose to a specific Mini version, it is advisable to use the manufacturer's markings and interchangeable numbers visible in the technical specifications section. This allows for precise verification of compatibility with the given gasoline engine configuration and avoidance of installation issues.

Operation in Mini Gasoline Engines

In Mini gasoline units, the cooling system operates within a wide temperature range, especially during city driving and in hot summer conditions. A functional water hose reduces the risk of localized overheating, air pockets in the system, and sudden drops in coolant level. This is important for the durability of seals as well as for protecting the cylinder head and engine block.

More information on the impact of ambient temperature on the cooling system and how to sensibly use used components can be found in the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings, which complements knowledge on the operation and servicing of cooling systems.

Expanding and Modernizing the Mini Cooling System

If you are planning a comprehensive engine area repair or modernization for your Mini and need other parts from the same group, such as additional water hoses, return hoses, or connections to the radiator, check the available parts in the Mini Cooling System Hoses and Pipes category.

This approach allows for the replacement of several critical components responsible for coolant circulation in a single service stage, which reduces the risk of subsequent service downtimes and helps maintain a consistent, factory-standard cooling system configuration.