BMW E60 E87 E90 E91 Remote Key Radio Alarm Button Switch PCA 315 MHz 6986579

Used key – requires programming

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

BMW E60 E87 E90 E91 Remote Key Radio Alarm Button Switch PCA 315 MHz is an original component from the Switches, control elements and ignition locks group, designed for the central locking remote control and immobilizer system in selected BMW models. Thanks to its factory design, it ensures proper fitment to the vehicle's electrical installation and compatibility with the onboard electronics architecture.

Specifications and technical data

• SKU: 6986579
• Mark: BMW (Genuine OE)
• Condition: For parts or not working
• OEM Part Number: 6986579
• Substitutable numbers: 6986579, 66126986579, 9268486, 66129268486, 2296932, 66122296932, 6945834, 66126945834, 0392213, 66120392213, 0413694, 66120413694, 6954812, 66126954812, 0397727, 66120397727
• Category: Switches & Controls

Purpose and function of the BMW remote key

The BMW E60 E87 E90 E91 Remote Key Radio Alarm Button Switch PCA 315 MHz is responsible for remotely controlling the vehicle's locking and unlocking functions and interacting with the security system in BMW E60, E87, E90, and E91 series cars. As an original BMW component, it is designed to operate within a specific frequency band, which enables correct communication with the vehicle's comfort and security modules.

This solution is dedicated to the factory control system, allowing for the maintenance of electronic consistency, central locking logic, and integration with other body modules.

Construction and integration with the control system

The remote key belongs to the Switches, control elements and ignition locks group, meaning it works directly with the ignition system, key recognition module, and start-block system. The remote's design provides for integration with the vehicle's electronics through appropriate coding, so that it can be assigned to a specific car.

The appropriate internal architecture enables interaction with factory body controllers, ensuring consistent operation of comfort functions, such as remote locking, unlocking, or activation of selected additional functions, if provided in the given vehicle configuration.

Technical condition and service application

The item is offered in a condition specified as For parts or not working, which in practice means it is best suited as a donor for the housing, buttons, or selected components for repairing another remote, rather than as a ready-to-use, fully functional key. This status allows it to be used in service, regeneration, or diagnostic processes where access to original sub-assemblies is required.

Before purchasing, it is worth considering the need for specialized work, such as potential coding, programming, or electronics replacement, carried out by a specialized service center dealing with BMW electronics.

Selection and vehicle compatibility

To correctly select a remote for a specific BMW vehicle, one should pay attention to compatibility with the vehicle generation, the security system used, and the body electronics parameters. The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates compatibility verification in service catalogs and parts selection systems.

Such an approach minimizes the risk of incompatibility with the comfort module, ignition lock, or immobilizer and allows for the effective use of the remote in the process of repairing or reconstructing the original key set.

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 ignition locks, steering column switches, or control modules, check the available parts in the BMW switches, control elements and ignition locks category.

Safety and selection of used components

When working with control and security systems, it is worth following procedures similar to those applicable to the selection of brake system components – it is crucial to check the origin, compliance of markings, and technical condition. For further knowledge on the safe selection of used components in critical vehicle systems, the article Second-hand brake system: how to safely select discs, calipers, and ABS? will be helpful, where you will find practical checklists and tips regarding parts verification.