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 buying the BMW key fob online and having it programmed at home. Most BMW fobs have replaceable batteries. https://thekeylab54013.ampblogs.com/10-healthy-habits-for-bmw-key-fob-replacement-67017815