Replace BMW Key Battery It's probably time to change your battery in the event that your BMW key isn't able to open your car or turn the engine. It's simple to fix. All you have to do is take off the cover of the key fob take it off, then https://carkeyrepair67079.verybigblog.com/29684560/bmw-key-fobs-tips-that-will-revolutionize-your-life