BMW E60 E81 E87 LCI E90 Hands Free Bluetooth Module High MULF2 9229740

BMW E60 E81 E87 LCI E90 Hands Free Bluetooth Module High MULF2 is an original component from the Electronic control modules and controllers group, designed for integrating the Bluetooth system in selected BMW 3 and 5 Series models. It enables stable communication between the factory multimedia system and mobile devices, ensuring convenient operation of calls and phone functions from within the vehicle.

Specifications and technical data

• SKU: 9229740
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9229740
• Substitutable numbers: 84109229740, 9229740, 84109224674, 84109187625, 84109147519, 84109178898, 84109149843, 84109207360, 84109163229, 84109181391, 84109223190, 84109200822, 84109172420, 9224674
• Category: ECUs & Computer Modules

Purpose and function of the MULF2 module

The presented BMW E60 E81 E87 LCI E90 Hands Free Bluetooth Module High MULF2 has been designed as part of the factory electronic architecture of BMW, responsible for handling wireless communication in vehicles equipped with multimedia and telephone systems. Its task is to process signals between the head unit and the phone, which translates into convenient hands-free operation, phonebook synchronization, and comfortable call management. Thanks to the use of a dedicated controller from the MULF2 family, compatibility with the vehicle's communication bus is maintained, as well as proper cooperation with factory steering wheel buttons and the onboard system interface. This solution allows for maintaining the consistency of the electrical installation and avoiding problems typical of non-factory Bluetooth kits.

Benefits of using an original BMW module

Using an original module from the Electronic control modules and controllers group ensures a perfect fit for the vehicle's installation without the need for harness modifications or additional adapters. The controller is prepared to work in the BMW electronic environment, which reduces the risk of communication errors, interference with the operation of other controllers, and diagnostic problems. Key advantages of this solution include:

• maintaining the factory functionality of the Bluetooth system in BMW 3 and 5 Series models,
• integration with the existing controller layout and vehicle installation,
• possibility of diagnostics and coding using standard BMW service tools,
• consistency of operation with the factory interface and control buttons.

Application in service and modernization practice

The MULF2 module will prove useful both when repairing a faulty Bluetooth system and when restoring full functionality of the hands-free kit after previous interference with the installation. In vehicles where the factory controller has been damaged, the use of an original component allows for the quick restoration of communication functions without the need to change the equipment concept. In the case of interior equipment modernization, e.g., when retrofitting a car with telephone functions, the use of a dedicated BMW E60 E81 E87 LCI E90 Hands Free Bluetooth Module High MULF2 facilitates integration with the existing electronic architecture. This makes it possible to maintain a clear installation structure and easier service maintenance in the future.

Condition, verification, and vehicle fitment

The item comes from dismantling and is intended for users and workshops that prefer proven used parts as an economical alternative to new components. Before installation, it is recommended to verify compatibility with the specific vehicle configuration, particularly in terms of equipment version and the multimedia system used. To facilitate the selection of the appropriate controller, the product has assigned OEM part numbers and interchangeable numbers, which can be compared with the markings on the currently installed module or in the vehicle's service documentation. This minimizes the risk of purchasing a part that does not fit a given BMW unit.

Expanding BMW electronics systems and service knowledge

If you are planning a comprehensive repair or modernization of the comfort and multimedia systems area in your BMW 3 or 5 Series and want to better understand the cooperation of modules such as the Bluetooth controller, light module, or engine controller, it is worth reaching for specialized knowledge. Practical tips on using parts from dismantling in BMW electronics can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using parts from dismantling?. If you are planning a comprehensive repair or modernization of the onboard electronics area in your BMW and need other elements from the same group, such as comfort controllers, communication modules, or multimedia system management units, check the available parts in the BMW electronic control modules and controllers category.