Replace BMW Key Battery It might be the time to change your battery If your BMW key won't open your car or turn off the engine. Fortunately, it's a simple fix. It's as easy as removing the key fob, replace the battery, and then gently put it back. Follow these https://carkeyrepair71791.blogprodesign.com/52147782/buzzwords-de-buzzed-10-more-ways-to-say-bmw-3-series-key-fob