Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS 6840399

Head Unit BMW F20 F21 F22 F30 F31 Radio CD Navigation GPS is an original component from the Electronic control modules and controllers group, designed for factory integration with BMW's electrical installation and onboard systems. The module combines radio, CD player, and GPS navigation functions into a single unit, ensuring seamless control of multimedia and driver information systems.

Specifications and technical data

• SKU: 6840399-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6840399
• Substitutable numbers: 6840399, 65126840399, 9874338, 65129874338, 6822582, 65126822582, 6821135, 65126821135, 8717544, 65128717544, 9399427, 65129399427, 9350341, 65129350341, 8792148, 65128792148, 8706993, 65128706993, 6822077, 65126822077, 9381313
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented multimedia module is designed for use in popular F-series models, such as the BMW F20, F21, F22, F30, and F31. As an OEM-class component, it works with the factory wiring harness, vehicle communication bus, and original control panels, allowing for the full functionality of the onboard system to be maintained.

Thanks to the use of a dedicated electronic architecture, the module is prepared for operation in the vehicle environment, taking into account requirements for interference resistance, power stability, and communication with other controllers.

Multimedia system functions

The Radio CD with GPS navigation in this version acts as the central control unit for multimedia and information in the car. The device integrates, among others:

• radio support with precise tuning and station saving capabilities,
• CD playback as an audio source,
• GPS navigation with data presentation on the system screen,
• communication with other modules in the vehicle within the controller network.

Combining these functions into a single controller allows for organized integration with other vehicle systems and facilitates diagnostics and potential replacement in case of equipment upgrades.

Benefits of using an original BMW module

Using an original module from the Electronic control modules and controllers group ensures compatibility with the car's electrical and software architecture. This means:

• factory fitment with the vehicle's installation and connectors,
• preservation of the manufacturer's intended multimedia system operation logic,
• proper cooperation with other controllers in the vehicle,
• diagnostic capability using standard BMW service tools.

Choosing this solution is particularly beneficial when replacing a damaged module or restoring full multimedia system functionality after electrical repairs.

Characteristics of the used component

The offered module is a used part, sourced from dismantling, which allows for an economical restoration of the multimedia system's efficiency while maintaining the original manufacturer's specifications. This type of solution is often chosen in professional automotive electronics workshops, where both technical compliance and rational repair costs are important.

Before installation, a standard diagnostic procedure and verification of compatibility with the specific vehicle configuration, including software and equipment matching, are recommended.

Support for selection and installation

To correctly select the module for a specific car, it is worth using the manufacturer's markings, vehicle data, and equipment configuration information. In workshop practice, identification by part numbers and interchangeable numbers is often used, which facilitates finding a compatible controller within the same family of modules.

If you want to deepen your knowledge about selecting and installing used controllers, how to verify compatibility, and practical aspects of working with onboard electronics, check out the guide: Used automotive electronics – ECU modules and second-hand sensors.

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