Replace BMW Key Battery It might be time to replace your battery if your BMW key won't allow you to open your car or turn off the engine. Fortunately, it's a simple fix. All you have to do is take off the cover for the key fob then carefully remove https://car-key-repairs15795.xzblogs.com/71406309/an-all-inclusive-list-of-bmw-key-fobs-dos-and-don-ts