How to Replace a BMW Car Key BMW Digital Key allows owners to share their access with friends and family. BMW Connected App users on iPhone and Android have access to this feature. The process of replacing the small battery in the battery of your BMW key fob is easy. https://carkeyrepairs96692.laowaiblog.com/29459469/a-list-of-common-errors-that-people-make-using-bmw-key-programmer