BMW i3 I01 Rex Hybrid Water Hose Cooling Coolant Pipe Line Radiator 8656443

The BMW i3 I01 Rex Hybrid Coolant Hose is an original cooling system component designed for the hybrid version of the BMW i3 from the I01 generation with an REx engine. Thanks to its genuine BMW origin, the hose ensures proper coolant flow and stable operation of the entire circuit. A used OEM component is a sensible choice for cooling system servicing when you prioritize fitment and maintaining operational parameters consistent with the manufacturer's design.

Specifications and technical data

• SKU: 8656443
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8656443
• Substitutable numbers: 8656443, 17128656443, KD
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The coolant hose in the BMW i3 I01 Rex Hybrid is responsible for the controlled flow of coolant between system components, which directly impacts the operating temperature of the powertrain and hybrid components. A correctly selected hose minimizes the risk of overheating, performance loss, and failures resulting from leaks or blockages in the circuit.

This component from the Cooling System Hoses and Pipes group is crucial for any intervention in the coolant circuit – whether during repairs or preventative replacement of worn sections of the system. Using an original hose allows for maintaining the factory routing geometry, appropriate flexibility, and resistance to operating temperature and pressure.

Benefits of Using an Original BMW Hose

Choosing a coolant hose specifically designed for the BMW i3 I01 Rex Hybrid offers a range of practical advantages:

• secure fitment to spigots and mounting points in the engine bay and cooling system area,
• maintenance of the correct coolant flow cross-section,
• compatibility with other components of the factory cooling system,
• reduced risk of leaks resulting from the use of aftermarket parts with different geometry.

As a result, the hose helps maintain a stable operating temperature for the internal combustion engine and hybrid components, contributing to safe operation and predictable vehicle behavior under various load conditions.

Component Condition and Service Application

The offered hose comes from the used BMW parts segment, allowing for economical repairs while maintaining original specifications. This type of component is particularly useful for:

• addressing coolant leaks,
• repairs after collisions in the engine bay area,
• preventative servicing on vehicles with higher mileage,
• restoring the factory configuration after previous modifications.

Using a used OEM hose helps maintain consistency with other system components, facilitating installation and reducing the need for additional modifications.

Technical Support and Cooling System Component Selection

When working on the cooling system of a hybrid BMW i3, it's important to pay attention to the overall condition of hoses, connectors, and radiators. To better understand overheating symptoms and the impact of individual components on powertrain longevity, the guide article Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses practical aspects of diagnostics and servicing, will be helpful.

Related BMW Cooling System Components

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