BMW G11 G12 G30 Junction Point Power Distribution Unit B+ Rear B48B20A 6802945

BMW G11 G12 G30 Junction Point Power Distribution Unit B+ Rear B48B20A is a specialized component from the Electronic control modules and controllers category, designed for power supply systems in premium BMW vehicles. The distribution unit is responsible for the safe and stable routing of B+ power in hybrid installations, which is crucial for the reliable operation of advanced onboard electronics.

Specifications and technical data

• SKU: 6802945
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6802945
• Substitutable numbers: 61145A693C7, 61146802945, 61149339833, 5A693C7, 6802945, 9339833
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The described B+ power distribution unit is designed for installation in the rear of the vehicle, where main power distribution points are often located in modern BMW designs. This component works with the hybrid installation, ensuring controlled voltage distribution to key consumers and control modules.

Thanks to its precise design and factory fitment for BMW G11, G12, and G30 platform vehicles, the distribution unit supports the stable operation of safety, comfort, and powertrain systems, minimizing the risk of voltage drops and unwanted power interruptions.

Construction and integration with the electrical system

The B+ power distribution unit is prepared to work with the factory BMW wiring harness, which facilitates installation and reduces the need for system modifications. The connectors and connection points used are optimized for high operating currents typical of hybrid systems.

Its location in the rear of the vehicle promotes compact routing of power cables and improves the organization of the entire installation. This makes power system service and diagnostics more predictable, and access to the component is more convenient during workshop repairs.

Application in BMW hybrid vehicles

In BMW hybrid vehicles, it is crucial to maintain proper power quality for both high and low voltage systems. BMW G11 G12 G30 Junction Point Power Distribution Unit B+ Rear B48B20A plays an important role in integrating the classic 12 V installation with the extensive architecture of controllers, inverters, and energy management modules.

A properly selected power distribution unit helps reduce energy losses, improves voltage stability in critical circuits, and supports the correct operation of electronic control modules and controllers, which are particularly sensitive to fluctuations in power parameters.

Characteristics of the used component

The offered power distribution unit comes from dismantling and is a used part, which provides a cost-effective solution while maintaining the manufacturer's original specifications. Choosing such a component allows for maintaining the consistency of the electrical system with BMW's factory design assumptions, without the need to use replacements with uncertain parameters.

A used component from the Electronic control modules and controllers group is a good solution in situations where the priority is to quickly restore vehicle functionality while maintaining compatibility with the existing electronic architecture.

Selection and additional technical information

When selecting a B+ power distribution unit for a specific BMW vehicle, it is crucial to verify compatibility with the part number and interchangeable numbers in the vehicle's service documentation. This helps avoid installation problems and ensures full cooperation with other control modules.

To better understand the specifics of used automotive electronics, including control modules and power distribution components, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

If you are planning a comprehensive repair or upgrade of the electrical system area in your BMW and need other components from the same group, such as control modules, controllers, or electronic management units, check the available parts in the BMW electronic control modules and controllers category.