Replace BMW Key Battery If your BMW key isn't able to open your car or turning on the engine, it could be time to replace your battery. Fortunately, it's a simple fix. Simply remove the key fob, then replace the battery and gently place it back. Follow these steps and https://thekeylabcouk31359.bloggerchest.com/30065623/15-amazing-facts-about-bmw-key-fobs-that-you-never-knew