BMW F20 F21 F22 F23 F30 F31 F32 Radio Remote Alarm Key Fob 434 MHz 8723602

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F21 F22 F23 F30 F31 F32 Radio Remote Alarm Key Fob 434 MHz is an original component from the Switches, control elements and ignition locks group, designed for remote operation of the central locking, alarm, and radio system in selected BMW models. Thanks to its precise fit with the vehicle's electronics, it ensures stable communication at a frequency of 434 MHz, which translates into convenient and reliable daily use.

Specifications and technical data

• SKU: 8723602
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8723602
• Substitutable numbers: 8723602, 66128723602, 9312538, 66129312538, 9312535, 66129312535, 9312527, 66129312527
• Category: Switches & Controls

Purpose and function in the vehicle

The presented radio key fob is designed to work with factory comfort and security systems in the BMW F20, F21, F22, F23, F30, F31, and F32 series. As a control element, it is responsible for:

• remote opening and closing of the vehicle,
• activation and deactivation of the alarm,
• communication with modules responsible for radio operation and comfort functions.

Stable operation at 434 MHz allows for reliable performance under typical operating conditions, without the delays and interference characteristic of unverified replacements.

Benefits of using an original BMW component

Using an original key fob in BMW F-series cars provides a number of practical advantages:

• Full integration with vehicle electronics – the key fob works with factory comfort and security modules, which facilitates coding and configuration.
• Consistency with the alarm system – proper communication with the alarm control unit minimizes the risk of errors and unwanted dashboard messages.
• Appropriate build quality – the design intended by the vehicle manufacturer is resistant to typical operational loads, such as frequent button presses or temperature changes.

For users who expect predictable operation of the remote control system, choosing an original element from this group is a safe and technically sound solution.

Condition and installation aspects

The key fob is offered as a used original BMW component, which allows you to combine a favorable purchase cost with the preservation of factory specifications. Before installation, you should plan for a matching procedure for the specific vehicle, including:

• programming or adaptation to the comfort controller,
• synchronization with the existing alarm system,
• verification of the correct operation of all functions after the procedure is completed.

It is recommended to have the coding performed by a specialized service or automotive electrician to ensure proper cooperation with the vehicle's installation and to avoid problems with the immobilizer or central locking.

Practical application and safety of use

In daily operation, the radio key fob is responsible for convenient access to the vehicle and operation of security features, so its efficiency has a direct impact on the user's comfort and safety. A properly selected element from this group:

• reduces the risk of accidental battery discharge resulting from incorrect communication,
• ensures predictable operation of the alarm system,
• facilitates the use of comfort functions, such as remote lock control.

Choosing an original BMW solution allows you to maintain the consistency of the entire control system and avoid problems typical of unverified replacements with uncertain specifications.

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

More about the safe selection of used components

When choosing used control and security elements, it is worth following proven verification procedures to avoid problems with vehicle electronics. Practical tips on assessing technical condition, purchasing methods, and safety criteria can be found in the article: Second-hand braking system: how to safely select discs, calipers, and ABS?. Although it concerns a different group of components, the methodology for assessing used parts presented there is also helpful when selecting control elements.

Additionally, if you are interested in the ecological and economic aspect of using used components in a car, it is worth reading the material Eco-driving: discover the benefits of used car parts, which shows how a conscious choice of such solutions affects operating costs and the environment.