Coolant Hose BMW i3 I01 Electric Auxiliary Water Pump Pipe Line 7623671

Coolant Hose BMW i3 I01 Electric Auxiliary Water Pump Pipe Line is an original BMW component designed for the cooling system of a gasoline-powered vehicle. Engineered as part of the water line that works with the electric auxiliary pump, it ensures stable coolant flow and supports the correct operating temperature of the drivetrain components.

Specifications and technical data

• SKU: 7623671
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7623671
• Substitutable numbers: 7623671, 17127623671, BG
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and function in the cooling system

This hose belongs to the Cooling system hoses and pipes group and is a component connecting the coolant circuit to the electric auxiliary pump in the BMW i3 I01 model with a gasoline engine (range extender version). It is responsible for the directional routing of the coolant, which is crucial for the thermal stability of the entire system and for protecting sensitive components from overheating.

Thanks to its dedicated geometry and factory fitment, the hose maintains proper connection tightness, minimizing the risk of leaks and pressure drops in the circuit. This is particularly important in hybrid and electric vehicles with an additional cooling circuit, where different heat sources interact with each other.

Construction, fitment, and installation

As an original BMW part, the hose has been designed for specific mounting points and connector diameters in the i3 I01 model, which facilitates installation and limits the need for modifications. Its shape and length are adapted to the routing of the installation in the vehicle's engine bay so as not to interfere with other components and to maintain safe distances from heat-generating elements.

The hose works with the auxiliary electric water pump, so its construction is prepared to operate at the pressures and coolant temperatures typical for this system. Proper routing of the hose after installation allows for maintaining correct flow, which translates into stable operation of the cooling system under various load conditions.

Benefits of using an original BMW hose

Using an original hose instead of a worn or leaking component allows for restoring the factory parameters of the cooling circuit. Key advantages include:

• secure fit to connectors and brackets in the BMW i3 I01,
• maintenance of the cooling line routing designed by the manufacturer,
• reduction of the risk of fluid leaks and system aeration,
• support for the correct operation of the electric auxiliary pump during high-load modes.

As a result, the hose provides a practical service solution when replacing cooling system components in a vehicle with a gasoline engine supporting the electric system.

Part condition and service application

The item is offered as a used BMW coolant hose, which allows for an economical repair while maintaining the manufacturer's original specifications. This is a good solution in situations where the existing hose has suffered mechanical damage, material aging, or thermal deformation, and the priority is to maintain compliance with the factory installation design.

Before installation, it is recommended to perform a standard check of the cooling system, including the condition of the fluid, the tightness of other hoses, and the correct operation of the pumps, so that the hose replacement is part of a comprehensive service rather than just a temporary repair.

More BMW cooling system components and technical knowledge

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

To better understand how thermal conditions affect the durability of hoses and the entire cooling circuit, it is worth checking out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. There, you will find practical tips regarding the operation and maintenance of cooling systems in high temperatures.