BMW i3 I01 High Voltage Battery Charging AC Combi Wiring Harness 3.3 KW 9396544

The AC charging cable harness for the BMW i3 I01 high-voltage battery is an original high-voltage system component designed for 3.3 kW AC charging. This component from the Charging Cables group ensures a proper connection between the charging system and the traction battery, supporting the safe and stable operation of the electric vehicle's entire high-voltage system.

Specifications and technical data

• SKU: 9396544
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9396544
• Substitutable numbers: 9396544, 61129396544
• Category: Charging Cables

Purpose and Function in the High-Voltage System

The harness in question is part of the system responsible for transferring energy from the onboard AC charger to the high-voltage traction battery in the BMW i3 generation I01. The AC Combi design allows for 3.3 kW AC charging, in line with the vehicle's factory architecture. A correctly selected harness in this area is crucial for:

• maintaining proper continuity and quality of electrical connections in the HV circuit,
• minimizing energy loss during charging,
• ensuring compliance with the high-voltage system's factory safety features and sensors.

Construction and Fit for BMW i3 I01

As a BMW branded component, the harness has been designed for the specific i3 I01 platform, maintaining factory cable lengths, conductor cross-sections, and connector types used in the AC charging system. This ensures:

• cable routing aligns with original pathways in the bodywork,
• connectors fit the factory charger and battery sockets without modifications,
• the installation remains compatible with factory brackets, covers, and mounting elements.

This precise fit reduces the risk of mechanical stress on the cables and facilitates future servicing of the high-voltage system.

Benefits of Using an Original BMW Harness

Using an original harness from the Charging Cables group in the BMW i3 I01 maintains the integrity of the entire HV system according to the manufacturer's specifications. In practice, this means:

• maintaining 3.3 kW AC charging parameters consistent with the vehicle's factory characteristics,
• proper interaction with control modules and high-voltage safety systems,
• reduced risk of diagnostic errors resulting from non-original connections or installation modifications.

An OEM part is a suitable solution for collision repairs, replacing a damaged harness, or restoring full functionality to the charging system after a failure.

Professional Installation and Operational Safety

Due to its operation within the high-voltage circuit, the installation of this harness should be performed by a service center experienced in handling BMW electric vehicles. Proper cable routing, secure connector engagement, and insulation checks are essential for the safe operation of the vehicle and maintaining stable charging parameters. A correctly installed harness supports:

• safe current load dissipation during charging,
• reduction of potential connection overheating points,
• maintaining high reliability of the entire traction battery power path.

If you are planning a comprehensive repair or upgrade of the high-voltage charging system in your BMW and require other components from the same group, such as inter-charger cables, connection sections, or charging port harnesses, check the available parts in the BMW Charging Cables category.

For users interested in the broader context of powertrain operation and the impact of accessories on engine performance, an article describing the refurbishment of a popular diesel engine may be helpful – Second Life for the Mercedes OM642 Engine – How Injectors and Turbocharger Restore Power to the 3.0 V6 CDI, which illustrates the importance of key component efficiency within the entire powertrain.