Replace BMW Key Battery It might be the 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 an easy fix. It's as easy as removing the key fob, then replace the battery and gently place it https://carkeyprogramming30405.bloggin-ads.com/53563813/a-how-to-guide-for-bmw-key-fobs-from-beginning-to-end