Replace BMW Key Battery If your BMW key isn't able to open your car or turning over the engine, it may be time to change your battery. Fortunately, it's a simple fix. You simply need to remove the key fob, then replace the battery and gently place it back. Follow https://car-key-replacement99656.imblogs.net/79910282/11-strategies-to-completely-redesign-your-bmw-3-series-key-fob