Replace BMW Key Battery If your BMW key isn't able to open your car or turning over the engine, it could be time to replace your battery. It's simple to fix. It's as easy as removing the key fob, then replace the battery and gently put it back. Follow these https://carkeyreplacements26900.free-blogz.com/77466138/11-ways-to-completely-redesign-your-bmw-3-series-key-fob