BMW F20 F21 F22 F30 F31 Radio Remote Alarm Key Button 868 MHz 8723574

Description

Used key – requires programming

The key requires programming (coding) by a specialist to be fully functional.

BMW F20 F21 F22 F30 F31 Radio Remote Alarm Key Button 868 MHz is an original control component designed to operate the central locking, alarm, and radio functions in selected BMW F-series models. Thanks to its factory OEM design, it ensures proper cooperation with the vehicle’s electronics and consistency with the existing comfort system architecture. This is a solution for users who need a factory-compliant key module with a button and radio communication.

Specifications and technical data

• SKU: 8723574
• Mark: BMW (Genuine OE)
• Condition: For parts or not working
• OEM Part Number: 8723574
• Substitutable numbers: 8723574, 66128723574, 9254906, 66129254906, 9254902, 66129254902, 2209534, 66122209534, 2230326, 66122230326, 9254894, 66129254894, 2230332, 66122230332
• Category: Switches & Controls

Purpose and function in the vehicle

The presented item belongs to the Switches, control elements, and ignition locks group and is responsible for remote control of selected vehicle functions, such as locking and unlocking doors, alarm activation, or radio system operation. It is dedicated to BMW F20, F21, F22, F30, and F31 platforms, where the module works with the factory electronic system and comfort access antennas.

The key with the button operates in the 868 MHz band, which is the standard in modern remote control systems used in European versions of BMW vehicles. This enables stable communication with the comfort module and maintains the appropriate operating range under typical operating conditions.

Construction and integration with BMW electronics

The element combines the function of a key and a remote control in one housing, which simplifies vehicle operation and reduces the number of separate components in daily use. The internal electronics are designed to meet the specific requirements of the BMW brand, allowing for proper cooperation with security systems, the immobilizer, and the alarm system.

Thanks to the OEM design, the correct radio communication parameters and proper button operation logic are maintained. This is particularly important when replacing a damaged module in vehicles equipped with extensive comfort systems, where an incorrectly selected replacement may cause diagnostic errors or unstable operation.

Technical condition and service application

The product is offered in For parts or not working condition, which means it is intended primarily as a donor for parts or a base for repair and refurbishment. It can serve as a source of housing, buttons, electronic parts, or other components used by specialized services dealing with the repair of BMW keys and comfort modules.

This type of use is particularly useful in situations where it is necessary to replace individual components, and purchasing a new, complete key would be economically unjustified. For electronic workshops and vehicle security system specialists, this is a practical base for further service work.

Matching by numbers and selection support

The item has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. When working with BMW electronics, it is crucial to compare the markings with the existing module in the car and verify compatibility with the equipment to avoid problems with programming or communication with other controllers.

To better understand how to safely select used security and comfort system components, it is worth reading the guide on purchasing second-hand brake components – many principles of verifying the condition and origin of parts are analogous, which is well described in the article Second-hand brake system: how to safely select discs, calipers, and ABS?.

If you want to further organize the process of checking compatibility by OEM numbers and avoid mistakes when shopping online, a practical guide on verifying components, available in the article Online parts shopping without risk – 5 proven ways to verify component compatibility by OEM numbers and paint codes, will be helpful.

Expanding work within the scope of BMW control and ignition

If you are planning a comprehensive repair or modernization of the control and ignition zone in your BMW and need other elements from the same group, such as button modules, steering column switches, or additional ignition elements, check the available parts in the BMW switches, control elements, and ignition locks category.

Summary

BMW F20 F21 F22 F30 F31 Radio Remote Alarm Key Button 868 MHz is an original component from the control and ignition group, intended mainly for service applications and parts acquisition in specialized workshops. Thanks to its factory OEM design and operation in the standard radio band, it can be a valuable base for repairing existing keys, rebuilding damaged modules, or as a source of mechanical and electronic elements in BMW F-series vehicles.