Coolant Hose BMW i3 I01 Rex Hybrid Radiator Coolant Pipe Line 8611672

The BMW i3 I01 Rex Hybrid Radiator Coolant Pipe Line is an original cooling system component designed for the hybrid version of the BMW i3 with a gasoline engine. Designed by BMW for precise coolant flow, it supports stable operation of the engine and hybrid system under various thermal conditions. A used OEM component is a sensible choice for drivers seeking a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 8611672
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8611672
• Substitutable numbers: 17128611672, 8611672, EM
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function in the Cooling System

This pipe is part of the Cooling System Pipes and Hoses group, responsible for transporting coolant between the radiator and other system components in the BMW i3 I01 Rex Hybrid with a gasoline engine. A correctly selected pipe ensures:

• stable pressure in the coolant circuit,
• efficient heat dissipation from the powertrain,
• maintenance of optimal operating temperature for the gasoline engine in the hybrid system.

Thanks to its factory fit for the specific i3 Rex model configuration, the pipe works with original connectors, clamps, and mounting elements, reducing the risk of leaks and installation issues.

Construction and Fit for BMW i3 Rex

The original BMW coolant pipe has been designed with the specific engine bay architecture of the i3 I01 with its combustion engine generator in mind. The shape, connector diameters, and pipe length are optimized for factory coolant line routing, which translates to:

• secure seating on the cooling system connectors,
• no interference with other components in the engine bay,
• maintaining proper fluid flow under the thermal load typical for a gasoline drive.

As an OEM component, the pipe complies with the manufacturer's requirements for resistance to temperature, pressure, and contact with the coolant used in this model.

Benefits of Using an Original Coolant Pipe

Using a used, original coolant pipe in the BMW i3 Rex allows you to combine cost control with maintaining system performance. Key benefits include:

• factory fit for the specific body and drive version,
• maintaining the coolant flow characteristics designed by BMW,
• reducing the risk of gasoline engine overheating in urban and highway conditions,
• no need for installation modifications or custom brackets.

This solution is particularly beneficial for servicing vehicles used intensively, where parameter consistency and compliance with BMW service documentation are important.

Operation in the i3 Rex Gasoline Vehicle

In the Rex version, the cooling system must handle the specifics of both the electric drive and the auxiliary gasoline engine. A properly selected coolant pipe:

• supports stable operation of the combustion unit under variable load,
• helps maintain proper operating temperature during extended driving,
• minimizes the risk of localized overheating due to improper fluid flow.

For i3 Rex users who plan longer trips or frequent use of the gasoline generator, a functional coolant pipe is an important element of preventative maintenance.

Technical Support and Cooling System Knowledge

To better understand how the condition of pipes and other components affects engine thermal safety, we recommend our guide: Summer Heat vs. Cooling System – How Used Cooling Components Affect Savings. You will find practical tips on operating and inspecting the cooling system in high temperatures there.

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