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

BMW E87 E90 Comfort Key PCA 315 MHz 6986579 is an original part from the switches, controls, and ignition switches group, designed for select BMW 1 and 3 Series models. This is a factory Comfort key, operating at a frequency of 315 MHz, dedicated to vehicles equipped with the appropriate comfort access system.

Specifications and technical data

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

Technical Characteristics of the BMW Comfort Key

The Comfort Key PCA 315 MHz is an advanced control element for the vehicle's access and starting system. It works with the factory BMW electronics, ensuring proper communication with comfort modules and the ignition switch. By using the appropriate radio frequency, it is matched to the specific market and car configuration, which is important when selecting a replacement part.

As a component from the Switches, Controls, and Ignition Switches category, the key integrates functions for central locking, immobilizer, and engine start system within a single housing, depending on the vehicle's equipment. This solution reduces the number of separate components and simplifies the control system architecture.

Intended Use and Compatibility

The presented Comfort Key is intended for selected versions of the BMW E87 and E90 series that feature a comfort access system and a compatible electronic ignition switch. When selecting the part, it is crucial to consider:

• compatibility with the vehicle generation (E87 / E90 platform),
• compliance with the Comfort Access system installed in the car,
• consistency with the control electronics and body modules.

The part has assigned replacement numbers, which facilitates verification of compatibility with a specific vehicle configuration in BMW catalogs and service systems, without the need to interfere with the electrical installation.

Technical Condition and Application in Repairs

The product is offered in the condition for parts or not working, meaning it is treated as a parts base or a donor for components. It can be used for, among other things:

• obtaining the housing or selected mechanical components,
• comparative analysis during the diagnosis of the comfort access system,
• training and testing purposes in workshops specializing in BMW electronics.

Due to the declared condition, detailed diagnostics and potential refurbishment or transfer of functional components to another key body are recommended before any use in a vehicle. This solution can be cost-effective for specialized repairs.

Benefits of Using an Original BMW Part

Choosing an original part from dismantling helps maintain consistency with the factory BMW electronic architecture. The main advantages include:

• factory fit for the ignition switch system and comfort modules,
• preservation of original vehicle operation ergonomics,
• possibility of use as a parts donor in specialized electronics repairs.

For workshops involved in programming and adapting BMW keys, such a part serves as useful service material, especially when reconstructing starter kits or repairing electronic damage.

Related Products and Technical Knowledge

If you are looking for other BMW switches, controls, and ignition switches, check out the BMW switches, controls, and ignition switches available in our store to select components matched to a specific model and equipment version.

When choosing used electronic components, knowledge about the specifics of premium parts from dismantling can also be helpful. It is worth reading the article on our blog used parts for Mercedes – original parts from dismantling, where we discuss a practical approach to selecting original components from the aftermarket, which can be analogously applied to premium brands like BMW.