Replace BMW Key Battery If your BMW key isn't opening the doors of your car or turning on the engine, it might be time to replace your battery. Fortunately, it's a simple fix. Simply remove the key fob, replace the battery and gently put it back. Follow these steps and https://thekeylab57649.ivasdesign.com/52138267/15-documentaries-that-are-best-about-bmw-key-fobs