BMW 3 Series F30 LCI 330e B48X Radiator Coolant Return Hose Line Pipe 7555634

BMW 3 Series F30 LCI 330e B48X Radiator Coolant Return Hose Line Pipe is an original cooling system component designed for the facelifted 3 Series models with a hybrid powertrain. Thanks to its factory-spec geometry and precise fit for the B48X unit, it ensures stable coolant flow and proper integration with other engine components. This is a practical solution for users looking to restore proper coolant circulation in their BMW.

Specifications and technical data

• SKU: 7555634
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555634
• Substitutable numbers: 17127555634, 7555634
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The described water hose has been designed for a precise fit in the engine bay of the BMW 3 Series F30 LCI generation, specifically the 330e version with the B48X unit. It is responsible for safely routing coolant between system components, which directly impacts the maintenance of stable operating temperatures for both the engine and hybrid components.

A properly selected water hose minimizes the risk of leaks, overheating, and cooling system performance drops. This is particularly important in hybrid vehicles, where thermal load is distributed across several sub-assemblies.

Construction and fitment for BMW F30 LCI 330e B48X

The geometry of the hose has been developed for the specific layout of components in the engine bay, which facilitates installation and allows for maintaining the factory routing of the system. The appropriately selected diameter and shape of the water pipe promote stable fluid flow and limit the formation of unwanted stress during engine operation.

As a part of the Hoses, lines, and pipes group in the cooling system, this component works with other fluid system parts, such as the radiator, connectors, water pump, or intermediate elements. This makes it possible to maintain the consistency of the entire system and facilitates easier diagnostics in the event of potential faults.

Benefits of using an original water hose

Using an original water hose in the BMW F30 LCI 330e B48X allows for maintaining cooling system performance at the levels intended by the manufacturer. Key advantages include:

• factory fitment for the specific engine and body version,
• appropriate stiffness and flexibility of the hose under operating conditions under the hood,
• maintenance of the correct coolant routing path,
• reduction of the risk of leaks resulting from improper installation of aftermarket replacements.

For users planning more extensive cooling system maintenance or replacing several components at once, it may be helpful to browse the entire group of parts in the Hoses, lines, and pipes category to select compatible components from a single source.

Part condition and service application

The offered item comes from dismantling and is intended for users and workshops looking for a proven part for cooling system repair in the BMW F30 LCI 330e B48X. This type of component works well both for typical maintenance replacements and for repairs following a failure related to fluid leaks or overheating.

In practice, it is worth combining the installation of the water hose with an inspection of other cooling system elements to avoid the recurrence of the problem in the near future. It is also good practice to verify part compatibility based on the VIN and BMW catalog data.

Technical support and additional materials

When selecting components for the powertrain and cooling system, many users pay attention to the specifics of individual BMW units. In the context of planning repairs and operating costs, the following guide material may be helpful: ranking of legendary BMW diesels N47 vs M57 / M57N / M57N2, which shows how different engine designs influence the selection of parts from the secondary market.

Thanks to properly selected components, such as the BMW 3 Series F30 LCI 330e B48X Radiator Coolant Return Hose Line Pipe, it is possible to maintain stable cooling system operation and reduce the risk of costly repairs resulting from engine overheating.