BMW F20 F21 F22 F30 F32 M Sport Radio Remote Key Fob Control 434 Mhz 5A57FC3

Used key – requires programming

The key requires programming (coding) by a specialist to be fully functional. BMW F20 F21 F22 F30 F32 M Sport Radio Remote Key Fob Control is an original component from the Electronic control modules and controllers group, designed for advanced control of the central locking and access system in selected BMW F-series models. The remote operates at a frequency of 434 MHz, ensuring stable communication with the vehicle while maintaining the factory logic of the comfort system.

Specifications and technical data

• SKU: 5A57FC3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A57FC3
• Substitutable numbers: 66125A57FC3, 5A57FC3, 66125A407F1, 5A407F1, 66128723610, 8723610, 66129312542, 9312542
• Part type: Central Timing Module
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The presented remote key fob is an element of the electronic control system, responsible for the remote operation of locks, security features, and selected comfort functions in BMW F-series cars with the M Sport package. Thanks to its integration with the factory vehicle system, it maintains full compatibility with body electronics, comfort modules, and the immobilizer system, which allows for consistent operation of all safety functions. As a part from the Electronic control modules and controllers category, the remote works with the appropriate controllers in the vehicle, transmitting encoded radio signals at a frequency of 434 MHz. Proper configuration allows for matching to the specific car setup, in accordance with the manufacturer's requirements.

Benefits of using an original M Sport remote

Using a remote dedicated to the M Sport version allows you to maintain the consistent character of the vehicle's equipment, both in terms of functionality and aesthetics. The original design ensures:

• proper cooperation with factory body controllers,
• preservation of remote control functions intended by the manufacturer,
• the possibility of professional adaptation to a specific vehicle unit. As a result, the driver receives a solution consistent with BMW factory standards, which is particularly important when servicing cars equipped with extensive comfort electronics.

Characteristics of operation at 434 MHz frequency

The remote operates in the 434 MHz band, used in many modern automotive remote control systems. This configuration enables stable communication with the control modules in the vehicle, reducing the risk of interference and ensuring repeatable operation of opening, closing, and other available comfort functions. Proper frequency matching to the controllers in the car is crucial for the correct operation of the entire system.

Condition and service application

The item is offered as used, which makes it an attractive service solution for users looking for original components at a reasonable price. This type of remote can be used when replacing a damaged key, expanding a key set, or restoring full functionality of the remote control system after a failure. Thanks to the preservation of the factory design, it is possible to professionally adapt the remote to a specific vehicle using appropriate service procedures and diagnostic tools, in accordance with the practice used in authorized and specialized workshops.

Expanding the control system in BMW

If you are planning a comprehensive repair or upgrade of the electronic control and comfort zone in your BMW and need other elements from the same group, such as comfort modules, central locking controllers, or electronic body units, check the available parts in the BMW Electronic control modules and controllers category. To compare the approach of premium manufacturers to maintaining the brand's character and the role of original electronic components in modern cars, it is worth reading the blog article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?, which shows how the right selection of components affects the consistency of the driving experience and the functioning of onboard systems.