Replace BMW Key Battery It could be the time to change your battery in the event that your BMW key won't open your car or turn on the engine. It's simple to fix. Simply remove the key fob, then replace the battery and gently place it back. Follow these steps https://the-key-lab61089.diowebhost.com/85156383/5-bmw-key-fobs-tips-you-must-know-about-for-2023