BMW Key Fob Replacement Cost BMW dealerships typically charge between $400 and $650 for a new key fob programmed to your vehicle. However, you can save a considerable amount of money by purchasing a BMW key fob online and having it programmed at home. Most BMW fobs have replaceable batteries. https://car-key-repair88410.ampedpages.com/the-most-popular-bmw-key-fob-replacement-it-s-what-gurus-do-3-things-57384770