BMW Key Fob Replacement Cost BMW dealerships typically charge between $400 and $650 for a new key fob that has been programmed to your car. You can save money by purchasing the BMW keyfob on the internet and having it programmed at home. The majority of BMW fobs are re-usable. https://car-key-programming49672.daneblogger.com/29654060/10-unexpected-bmw-key-fob-replacement-tips