Replace BMW Key Battery It's probably time to change your battery in the event that your BMW key won't open your car or turn the engine. It's simple to fix. You simply need to remove the key fob, then replace the battery, and then gently put it back. Follow these https://car-key-replacements27817.blogdomago.com/29374926/5-reasons-bmw-key-fobs-can-be-a-beneficial-thing