Replace BMW Key Battery It could be the time to change your battery in the event that your BMW key won't open your car or turn the engine. It's a simple fix. Simply remove the key fob, replace the battery, and then gently put it back. Follow these steps and https://thekeylabcouk82224.techionblog.com/30186351/why-we-our-love-for-bmw-3-series-key-fob-and-you-should-too