{"product_id":"cas3-semi-intelligent-remote-control-car-key-fob-replacement-for-bmw-vehicles-with-315mhz-433mhz-or-868mhz-frequency-supplied-with-three-blank-keys-and-metal-copper-and-plastic-construction","title":"CAS3 semi-intelligent remote control car key fob replacement for BMW vehicles with 315Mhz, 433Mhz, or 868Mhz frequency, supplied with three blank keys and metal copper and plastic construction.","description":"\u003ch1\u003eCAS3 Semi-Intelligent Remote Car Key Fob Replacement for BMW Vehicles\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/2ec76310-9704-4378-9011-16e12890860e.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis product is a replacement CAS3 semi-intelligent remote control key fob designed specifically for BMW cars. It serves as a functional alternative when an original key is lost, damaged, or needs duplicating. The key is supplied in a blank state, meaning the metal blade is uncut and the electronic remote is unprogrammed, ready for professional servicing to match your specific vehicle. Its construction from metal copper and plastic provides a robust housing for the internal electronics, and it is available in the recognised HU92 model style. Compatibility is dependent on your BMW's exact model, year, and existing key system, so verifying this information before purchase is essential.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/318688d3-3669-4517-b27d-d04eea150b18.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe key fob is built to replicate the functionality of original BMW CAS3 keys. Its design focuses on providing the necessary components for a locksmith or dealer to create a fully operational spare or replacement key for your vehicle.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe key employs a two-material construction. A metal copper core is used for the internal strength of the key blade and likely within the electronic housing for durability. This is encased in an outer shell made from plastic, which forms the main body of the key fob, houses the buttons for remote functions, and protects the internal circuit board. This combination aims to balance structural integrity with a practical, handheld form factor.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eThe key is produced in the HU92 model style, which is a specific form factor designed to be compatible with certain BMW models. As dimensions are not specified, its physical size and button layout will match that of the original HU92 key it is intended to replace. The product is supplied with three separate blank keys, providing multiple opportunities for cutting and programming, or allowing for the creation of additional spares from a single purchase.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/638ceb2c-fc9c-4923-8fb9-f450a4b00f3b.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis key serves a clear, practical purpose for BMW owners who require a replacement or additional key for their vehicle. It is not a standalone, ready-to-use product but a core component that enables professional key creation.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eThe primary use case is for replacement after key loss or damage. Automotive locksmiths and BMW dealerships can use this blank fob as the base unit to cut a new blade and program the transponder and remote circuitry to work with a customer's specific car. It is a standard part within the automotive locksmith trade for servicing BMW vehicles equipped with the CAS3 system.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eFor the vehicle owner, the end result is a fully functional spare or replacement key that provides remote central locking and unlocking convenience, and allows ignition access. Having a spare key can prevent being locked out of the vehicle and reduce reliance on a single key, which is a common risk for daily drivers.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/c5321ba1-6f5c-4f89-89d5-9c9774c712cf.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this product lies in its role as a cost-effective component for key replacement, compared to sourcing a key directly from a main dealer. It provides the essential hardware needed for a professional to complete the service.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe key fob itself is a durable electronic device with no moving parts that require routine maintenance. Once cut and programmed, it should function identically to an original key for the life of the vehicle, barring physical damage or electronic failure. The inclusion of three blanks offers inherent reuse value, as unused blanks can be stored for future needs.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eThis key is a suitable choice if you need a replacement CAS3 key for a compatible BMW and are using a professional service for cutting and programming. The availability of three frequency options (315Mhz, 433Mhz, 868Mhz) helps ensure compatibility with different model years and regions. It provides the physical key and remote shell, which are often the most costly parts of a key replacement service when sourced through official channels.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/cc4d978e-bfb9-4f1f-b674-0ea08c3d4d95.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"BMW CAS3 semi-intelligent remote car key fob replacement with three blank keys.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/248\/2025-10-02\/original-image\/fc96d56b-c57a-4bf0-a59f-ffd5d0d22fca.webp\"\u003e\u003c\/div\u003e","brand":"u9cmuw-dx","offers":[{"title":"Semi intelligent \/ 868Mhz","offer_id":56675118186876,"sku":"CJQC170993603CX","price":20.98,"currency_code":"GBP","in_stock":true},{"title":"Semi intelligent \/ 433Mhz","offer_id":56675118219644,"sku":"CJQC170993602BY","price":20.98,"currency_code":"GBP","in_stock":true},{"title":"Semi intelligent \/ 315Mhz","offer_id":56675118252412,"sku":"CJQC170993601AZ","price":20.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1685\/3628\/files\/2ec76310-9704-4378-9011-16e12890860e.webp?v=1777040646","url":"https:\/\/havenmere.co.uk\/products\/cas3-semi-intelligent-remote-control-car-key-fob-replacement-for-bmw-vehicles-with-315mhz-433mhz-or-868mhz-frequency-supplied-with-three-blank-keys-and-metal-copper-and-plastic-construction","provider":"Havenmere.co.uk","version":"1.0","type":"link"}