BMW Z4 Series E85 N52 Roadster Radiator Cooling Coolant Water Hose 7545277

BMW Z4 Series E85 N52 Roadster Radiator Cooling Coolant Water Hose is an original cooling system component designed for BMW models with the N52 petrol engine in the roadster body style. Thanks to its factory geometry and fitment, it ensures stable coolant flow and proper integration with other engine components. It is a practical solution for users looking for parts of proven quality at a reasonable price.

Specifications and technical data

• SKU: 7545277
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7545277
• Substitutable numbers: 17127545277, 7545277, Petrol N52
• Category: Glass Care & Water Repellent

Purpose and function of the water hose

The water hose in the BMW Z4 E85 with the N52 unit is responsible for safely routing coolant between cooling system components. A properly selected hose minimizes the risk of leaks, engine overheating, and a drop in engine performance.

By maintaining the factory shape and diameter, the hose ensures:

• adequate coolant flow across the entire engine load range,
• proper positioning in the engine bay without tension or twisting,
• compatibility with original connectors and fittings.

Technical characteristics and fitment

The offered hose is a BMW OE part, which means it adheres to the manufacturer's standards regarding dimensions and construction. As a result, the component is perfectly matched to the cooling system in the BMW Z4 E85 Roadster with the N52 engine, without the need for modifications or additional adapters.

In practice, this means:

• secure fitment with factory brackets and mounts,
• proper cooperation with other cooling system components,
• preservation of the original hose routing in the engine bay.

Part condition and service application

The hose is offered as a used part, allowing for an economical repair of the cooling system while maintaining the original BMW specification. This type of component is suitable both for the standard replacement of a worn hose and for more extensive service work related to the N52 engine's cooling system.

Choosing an original water hose is particularly important when you want to:

• maintain factory engine operating parameters,
• reduce the risk of failures resulting from leaks,
• ensure correct hose routing in the engine bay.

Support in choosing used parts

When selecting a used water hose for the BMW Z4 E85 Roadster N52, it is worth paying attention to compatibility with the cooling system and the general condition of the element. If you are planning a broader upgrade or service and are using parts from the secondary market, a guide on common pitfalls when making such purchases may be helpful – check out the article on the most common mistakes when choosing used tuning parts to better plan your actions.

Why choose this water hose

BMW Z4 Series E85 N52 Roadster Radiator Cooling Coolant Water Hose is a sensible choice for those who want to restore the efficiency of the cooling system while maintaining the manufacturer's original specification. Proper fitment, factory geometry, and its origin from the BMW OE group promote stable engine operation and reduce the risk of future operational problems.