Replace BMW Key Battery If your BMW key isn't opening the doors of your vehicle or turning the engine, it could be time to change your battery. Fortunately, it's a simple fix. It's as easy as removing the key fob, replace the battery and gently put it back. Follow these https://carkeyprogramming10001.atualblog.com/36315107/10-things-everyone-hates-about-bmw-3-series-key-fob