BMW E81 E87 E90 Hands Free Electronics Charging Module MULF 6934552

BMW E81 E87 E90 Bluetooth Control Module 6934552 is an original part from the Electronic Control Modules and Controllers category, designed for factory BMW 1 and 3 Series multimedia systems. It enables convenient phone integration with the car's system, ensuring stable wireless communication and maintaining full compatibility with the vehicle's electronic architecture. This is a solution for users who want to restore the proper functionality of their hands-free system or replace a missing module in their BMW.

Specifications and technical data

• SKU: 6934552
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6934552
• Substitutable numbers: 84216946393, 6946393, 84109111718, 9111718, 84109154358, 9154358, 84106975173 84106972678 84216936332 84106965406, 6975173 6972678 6936332 6965406, 84216933284 84106953044 84216938784 84216933283, 6933284 6953044 6938784 6933283, 84106958369 84216938943 84216948404
• Category: ECUs & Computer Modules

Purpose and Integration with BMW Systems

The presented Bluetooth controller has been specifically designed for BMW E81, E87, and E90 models, ensuring compatibility with the factory wiring harness and the vehicle's communication bus. This means the module is prepared to operate within the car's original electronic environment, without the need for additional adapters or installation modifications.

As an OEM BMW part, the module is optimized for communication with other onboard controllers, such as the multimedia unit, control panel, and comfort modules. This ensures consistent operation of the entire infotainment system and minimizes the risk of diagnostic errors.

Functionality of the Bluetooth Control Module

The module is responsible for handling Bluetooth connectivity in the vehicle, which translates into:

• the ability to pair a phone with the car's system,
• handling voice calls using the factory hands-free system,
• compatibility with multifunction steering wheel buttons and the onboard system interface,
• maintaining integrity with other electronic control modules.

This allows the driver to use phone functions safely and ergonomically, without the need to install additional universal kits, which often interfere with the vehicle's wiring and reduce user comfort.

Benefits of Using an Original BMW Module

Using an original Bluetooth controller in BMW E81, E87, and E90 models offers a range of practical advantages:

• Full Compatibility with Vehicle Electronics – the module works with factory controllers and software, simplifying diagnostics and coding.
• Stable System Operation – reduced risk of interference and connectivity issues compared to universal solutions.
• Functional Consistency – maintains original operation from the steering wheel, display, and onboard system menus.
• Ability to Utilize Existing Installation – no need for additional wiring or modifications to the harnesses.

For users looking to restore the factory Bluetooth function after a previous controller failure, this is a technically safe solution tailored to the specifics of BMW 1 and 3 Series models.

Condition, Verification, and Practical Application

The module is a used OEM part sourced from disassembly, offering a reasonable cost while maintaining original build quality. These types of controllers are often chosen by workshops specializing in the BMW brand, as they allow for economical repair of comfort and multimedia systems while adhering to factory specifications.

Prior to installation, a standard service procedure is recommended, including system diagnostics, potential module coding to the specific vehicle, and verification of all Bluetooth functions after installation. This ensures the full potential of the controller is utilized, restoring the convenience of the hands-free system in daily use.

More About BMW Electronic Modules and Maintenance

If you want to better understand how to care for your car's electronic modules, including controllers responsible for connectivity and comfort systems, we recommend reading the guide on our blog: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models. You will find practical tips on diagnostics, selecting used parts, and the principles of safe BMW electronics servicing.

If you are looking for other BMW Electronic Control Modules and Controllers for your car, check out our dedicated offer: BMW Electronic Control Modules and Controllers. This will allow you to easily compare available solutions and select the right part for your specific model and equipment configuration.