BMW Key Fob Replacement Cost BMW dealerships charge from $400 and $650 for a new car key fob. You can save money by buying the BMW keyfob online and then having it programmed at home. The majority of BMW fobs can be replaced. You can buy a replacement battery at https://car-key-replacements78786.blogs100.com/30460546/what-is-the-reason-bmw-key-fob-replacement-is-fast-becoming-the-most-popular-trend-for-2023