Coolant Hose BMW F20 F30 F31 N55 Petrol Water Cooling Pipe Line 7598236

Coolant Hose BMW F20 F30 F31 N55 Petrol Water Cooling Pipe Line is a component from the Cooling system hoses and pipes group, designed for N55 petrol engines in popular BMW 1 and 3 series models. It is responsible for the stable flow of coolant, which translates into a safe engine operating temperature and predictable cooling system performance.

Specifications and technical data

• SKU: 7598236
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7598236
• Substitutable numbers: 7598236, 11537598236
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented hose is designed to work with the N55 petrol engine in BMW F20, F30, and F31 models, where it is responsible for transporting coolant between system components. A properly selected hose minimizes the risk of localized overheating, loss of tightness, and reduced cooling efficiency during dynamic driving.

In practice, this means:

• stable coolant flow across the entire engine load range,
• maintaining the proper operating temperature of the engine,
• reducing the risk of failures resulting from leaks or air pockets in the system.

Benefits of using an original BMW hose

Using a hose dedicated to a specific generation of BMW with an N55 engine ensures proper routing in the engine bay and a perfect fit for connectors and clamps. As a result, installation is predictable, and the risk of material stress or rubbing against adjacent components is limited.

Key advantages include:

• factory geometry matched to the cooling system in the BMW F20, F30, and F31,
• compatibility with the N55 petrol cooling system,
• ability to use existing mounting points in the vehicle.

Performance characteristics and installation

The hose is designed to operate in high-temperature environments and under variable pressures typical of petrol engine cooling systems. The correct selection of diameter and shape translates into uniform fluid flow and reduced turbulence, which supports the stability of the entire system.

During installation, it is worth paying attention to:

• correct positioning of the hose relative to the fan, covers, and other engine bay components,
• checking the condition of clamps and connectors,
• proper bleeding of the cooling system after replacement.

Application in service and overheating prevention

Replacing the coolant hose is recommended not only after noticing leaks but also as a preventive measure during cooling system maintenance, especially in vehicles operated in variable thermal conditions. A functional hose reduces the risk of a sudden drop in fluid level and associated engine damage.

To better understand the impact of hoses and other components on engine durability, it is worth checking out our guide on diagnostics and cooling system service: Engine cooling system – overheating, repair, and used radiators.

Expanding BMW cooling system service

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other elements from the same group, such as additional lines, flexible hoses, or connecting sections, check out the available parts in the BMW cooling system hoses and pipes category.