BMW X5 E53 Radio Remote Alarm Key Fob Button 433 MHz Ring Antenna Lock 8379345

Used key – requires programming

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

The BMW X5 E53 Key 433 Mhz Immobilizer Ignition Switch is an original set of control components designed for the starting and security system of the BMW X5 E53 generation. This type of complete set is crucial for the proper cooperation of the key, immobilizer, and ignition switch, ensuring compatibility with the factory electronics and electrical installation architecture. By maintaining the original specification, it provides a solid foundation for repairing or reconstructing the starting system in this model.

Specifications and technical data

• SKU: 8379345
• Mark: BMW (Genuine OE)
• Condition: For parts or not working
• OEM Part Number: 8379345
• Substitutable numbers: 8379345, 61358379345, 6964556, 61356964556, 0403532, 61350403532, 8363099, 61358363099, 0141223, 61350141223, 6900016, 61356900016, 3332004, 6 955 749, 6955749
• Category: Switches & Controls

Purpose and Function in the Vehicle

The offered set belongs to the Switches, Control Elements, and Ignition Switches group, responsible for ignition, starting, and driver authorization in the vehicle. In the BMW X5 E53, the cooperation between the key, immobilizer, and ignition switch is linked to electronic modules, so using an original set maintains consistency with the factory security system and control logic.

The correct reading of the immobilizer transponder and the proper transmission of signals to the vehicle's electronic system are key here. Using components from the same BMW production line minimizes the risk of communication problems on the bus and errors related to incorrect key identification.

Technical Characteristics of the Set

The set includes components responsible for ignition and starting lock operation, working in the 433 MHz band, typical for many radio solutions used in BMW vehicles of that period. This ensures the system is adapted to the electronic architecture of the BMW X5 E53, facilitating integration with the vehicle's existing installation.

The original manufacturing ensures proper mechanical fit of the ignition switch to the steering column and electrical compatibility with the wiring harness. This is particularly important during service work where maintaining factory mounting points and connectors without the need for installation modifications is crucial.

Service and Diagnostic Application

Due to its status as for parts or not working, the set is primarily intended as a source of parts for further service, refurbishment, or diagnostic work. It can be used, among other things, for:

• obtaining mechanical components of the ignition switch for the reconstruction of a damaged lock,
• comparative analysis during diagnostics of starting and immobilizer problems,
• workshop tests related to the electrical system and control modules.

This type of set is particularly useful in specialized BMW service centers and automotive electronics workshops where access to original reference components is important.

Selection and Compatibility

To correctly select the BMW X5 E53 Key 433 Mhz Immobilizer Ignition Switch for a specific vehicle instance, it is recommended to verify compatibility with the OEM part number and the list of interchangeable numbers in the technical specifications tab. This helps avoid problems with mechanical and electrical fit, as well as minimizes the risk of incorrect cooperation with comfort and security modules.

In workshop practice, it is also important to check the equipment configuration of the specific BMW X5 E53 (e.g., the type of electronic modules used) to confirm that the set will be an appropriate reference point or that the necessary components can be sourced from it.

Expanding the BMW Control System

If you are planning a comprehensive repair or modernization of the ignition control system area in your BMW and need other components from the same group, such as additional ignition switches, steering column switches, or control modules related to starting, check the available parts in the BMW Switches, Control Elements, and Ignition Switches category.

Safety and Selection of Used Components

When working with systems responsible for vehicle safety and control, such as the immobilizer or starting-related systems, it is advisable to use procedures similar to those used when selecting brake system components. For a deeper understanding of safely choosing used components in critical vehicle systems, the article: Second-hand braking system: how to safely choose discs, calipers, and ABS? will be helpful.