BMW U11 G05 G45 High-Voltage Battery Combined Charging Unit CCU 7.4 KW 5B565B1

BMW U11 G05 G45 High-Voltage Battery Combined Charging Unit CCU 7.4 KW is a high-voltage charging module designed for the latest generation of BMW hybrid and electric vehicles. This component is responsible for managing the traction battery charging process and integrating with the high-voltage installation, which directly impacts the reliability of the powertrain. This is a solution for users who expect factory compatibility and stable operating parameters of the high-voltage system.

Specifications and technical data

• SKU: 5B565B1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5B565B1
• Substitutable numbers: 5B565B1, 61445B565B1
• Category: Other Electric, Hybrid & PHEV Specific Parts

Purpose and role in the BMW high-voltage system

The 7.4 kW Combined Charging Unit (CCU) plays a key role in the electrical architecture of BMW U11, G05, and G45 series vehicles, integrating the functions of an on-board charger with power flow control elements. This module works with the high-voltage battery, HV installation, and vehicle safety systems, ensuring control over the charging process from external AC infrastructure. As a result, the charging system maintains stability, and operating parameters are adjusted to the manufacturer's requirements.

Benefits of using an original BMW module

Using an original CCU module in a BMW vehicle allows for maintaining the consistency of the entire high-voltage system. The most important advantages include:

• maintaining the factory control logic for high-voltage battery charging,
• proper cooperation with vehicle electronics and diagnostic systems,
• appropriate matching to the HV installation architecture in a given model,
• reduced risk of communication errors between controllers and the charging system.

For the user, this means stable powertrain operation, predictable charging times, and maintaining operational parameters in accordance with the manufacturer's specifications.

Technical characteristics and vehicle integration

The 7.4 kW CCU module is designed as an element integrated with the high-voltage system, which translates into optimized communication with other vehicle controllers. In practice, this means:

• precise monitoring of the traction battery charging process,
• adjusting charging parameters to the battery's state and temperature,
• cooperation with high-voltage safety systems,
• support for charging modes intended for a given generation of BMW vehicles.

Thanks to this, the charging system remains consistent with the factory configuration, and replacing the module does not require interference with the high-voltage installation design beyond standard service procedures.

Component condition and service application

The offered module comes from the group of original BMW components and is intended for service applications in vehicles equipped with a high-voltage traction battery. It works well both when replacing a damaged module and when restoring full functionality of the charging system after a failure. Choosing such a solution allows for limiting the risk of incompatibility that may occur when using replacements of uncertain origin.

Selection and vehicle compatibility

Due to the specificity of BMW high-voltage systems, it is recommended to verify the module's compatibility with the specific vehicle version, its equipment, and powertrain configuration before installation. In practice, this means checking whether a given CCU variant is intended for a specific model and year, and whether it meets the requirements of the high-voltage battery used. A correctly selected module facilitates the coding and adaptation process in the vehicle.

If you are planning a comprehensive repair or upgrade of the high-voltage electrical system area in your BMW and need other elements from the same group, such as control modules, high-voltage relays, or HV harnesses, check the available parts in the Other BMW category.

For drivers interested in comparing solutions used in different brands and segments, including sports models from competing manufacturers, an article discussing differences in powertrain design and associated systems may be helpful – more information can be found in the entry Audi RS vs other models – what is hidden under the hood and chassis?.