BMW i3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater 9363105

BMW i3 I01 Hybrid Electric Auxiliary Electrical Coolant Water Heater is a specialized thermal system component designed for efficient heating of the cooling circuit in BMW i3 I01 electric and hybrid vehicles. This used OEM component ensures consistency with the factory installation, and its design supports stable operation of the high-voltage system as well as cabin thermal comfort in low temperatures.

Specifications and technical data

• SKU: 9893003-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9893003
• Substitutable numbers: 9893003, 64129893003, 9335239, 64219335239, 9490556, 64129490556, 6827186, 64126827186, 9310499, 64219310499, 9363105, 64219363105, KD
• Category: Other Car Parts & Accessories

Purpose and function in the BMW i3 I01 thermal system

The presented coolant heater operates as an electric cooling system auxiliary module in the BMW i3 I01 with a hybrid-electric powertrain. Its task is to quickly raise the temperature of the cooling medium in the circuit, which:

• stabilizes the operating conditions of high-voltage components,
• accelerates the achievement of the system's optimal operating temperature,
• reduces thermal fluctuations during intensive use,
• supports thermal comfort inside the vehicle at low ambient temperatures.

Thanks to this, the cooling system in the BMW i3 I01 maintains predictable parameters, which is particularly important in electric vehicles, where temperature management has a direct impact on component durability and powertrain stability.

Compatibility, replacement numbers, and identification

The offered heater is an original BMW part, equipped with a factory OEM part number and a set of interchangeable numbers, which facilitates precise identification in service catalogs and parts selection systems. The presence of multiple reference numbers allows the component to be matched to specific equipment versions and model years of the BMW i3 I01, minimizing the risk of installation incompatibility.

Before purchasing, it is worth comparing the markings with the vehicle's service documentation or the removed part to confirm full compatibility. This will allow you to maintain the continuity of the cooling system's operation without the need for installation modifications.

Characteristics of the used OEM component

The heater comes from the secondary market and has the status of a used OEM component. This means it was manufactured according to BMW factory standards, maintaining appropriate tolerances and electrical and hydraulic parameters. In practice, this translates into:

• proper fitment to factory brackets and cooling hoses,
• compatibility with the vehicle's original electrical harness,
• preservation of the operating characteristics intended by the manufacturer.

A used OEM element is an attractive cost alternative to a new component, while maintaining the proper geometry and manufacturing standard intended for the BMW i3 I01.

Benefits of using an original heater in the BMW i3 I01

Using a dedicated electric coolant heater in the hybrid BMW i3 I01 brings a number of practical operational benefits:

• Stable temperature management – support for the cooling system in low-temperature conditions and under variable electric powertrain loads.
• Consistency with the factory installation – no need for modifications to hoses, mounts, or electrical harnesses.
• Service cost optimization – a used OEM element allows for reduced expenses while maintaining the proper technical standard.
• Better predictability of the thermal system's operation in the long term.

Selection of used components and additional materials

When choosing used components for electric and hybrid vehicles, it is worth paying attention to the consistency of markings, the condition of connectors, and the type of installation to avoid assembly and diagnostic problems. It is also good practice to verify whether a given heater was used in the same generation of the cooling system as in your BMW i3 I01.

If you want to expand your knowledge on the conscious selection of secondary market components and avoid common mistakes when purchasing used parts, check out the guide buying used car parts and the most common mistakes when choosing tuning components, which will help you better plan your service investments.

If you are planning a comprehensive repair or upgrade of the cooling and heating area in your BMW and need other elements from the same group, such as coolant hoses, additional electric heating modules, or mounting elements, check the available parts in the Other BMW category.

To compare the characteristics of advanced powertrains and thermal systems in high-performance cars, you can also refer to the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how premium manufacturers design modern powertrains, brakes, and chassis in the context of intensive use.