BMW F20 F21 F22 F23 F30 F31 F32 Basis Radio Remote Alarm Key Button 434 MHz

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F21 F22 F23 F30 F31 F32 Basis Radio Remote Alarm Key Button 434 MHz is an original component from the Switches, control elements and ignition locks group, designed for factory remote control systems in selected BMW F-series models. The product is offered in for parts or not working condition, making it suitable primarily as a donor for components, housing, or electronics to repair an existing remote.

Specifications and technical data

• SKU: 8723598-2
• Mark: BMW (Genuine OE)
• Condition: For parts or not working
• OEM Part Number: 8723598
• Substitutable numbers: 8723598, 66128723598, 9312523, 66129312523
• Category: Switches & Controls

Application and function of the 434 MHz remote

The presented remote key operates on the 434 MHz band, used in central locking remote control systems and comfort functions in many BMW F-series models. It is a component integrated with the vehicle's electronic system, working with comfort modules and vehicle security, responsible for:

• remote control of door locks and the trunk lid,
• handling comfort opening and closing functions,
• cooperation with the ignition system or start/stop button (depending on the car's configuration).

By maintaining the original OEM design, the remote ensures proper fitment with factory electronic systems after appropriate programming and configuration by a specialized service center.

Technical characteristics and construction

As an element from the Switches, control elements and ignition locks category, the BMW 434 MHz remote key combines an electronic circuit, control buttons, and a slot for a mechanical blade (if present in the given version) in one housing. The construction is intended for intensive use in daily vehicle operation, with an emphasis on:

• an ergonomic housing shape designed to fit the hand,
• a clear button layout for easy operation without looking at the remote,
• stable operation in the 434 MHz band under typical urban and garage conditions.

The original manufacturing promotes visual consistency with other interior elements of the BMW and minimizes the risk of compatibility issues compared to low-quality replacements.

Product condition and potential service applications

The item is offered in for parts or not working condition, which means it should not be treated as a complete, ready-to-use remote. This condition is particularly useful for:

• automotive electronics specialists looking for donor boards, buttons, or housings,
• workshops specializing in the regeneration and programming of BMW remotes,
• users who want to restore a damaged housing or replace worn mechanical parts.

Before planned use, detailed diagnostics and verification of the suitability of individual components by a qualified service center are recommended, taking into account the requirements of the immobilizer system and programming procedures used by BMW.

Selection, compatibility, and mounting aspects

To correctly select this remote for a specific BMW vehicle, it is crucial to compare the OEM part number and any interchangeable numbers with the vehicle's specification and service documentation. Proper selection has a direct impact on:

• correct communication with comfort and security modules,
• the ability to successfully program the remote to the vehicle,
• the stability of remote control functions in the long term.

Due to the complexity of BMW security systems, all work related to coding, adaptation, and functional testing should be carried out by a service center equipped with appropriate diagnostic software and experience in working with F-series electronics.

If you are planning a comprehensive repair or upgrade of the control and security zone in your BMW and need other elements from the same group, such as remotes, ignition lock cylinders, or control modules, check the available parts in the Switches, control elements and ignition locks BMW category.

Expert support and salvaged parts

When working with used electronic components, it is worth using reliable sources of knowledge regarding regeneration, programming, and component selection. A good supplement to service information can be an article describing the benefits of using original salvaged components in premium cars, available at the link: Used parts for Mercedes – original salvaged parts. Although it concerns a different brand, it addresses universal issues related to economical and technically correct repair of premium segment vehicles.

Additionally, in the context of older models and limited availability of new elements at authorized service centers, it is worth reading the guide on using salvaged components: No parts at the dealership? How to deal with repairing older models using salvaged parts. This will allow you to better plan your service strategy when original new remotes or control modules are difficult to obtain or not cost-effective.