Replace BMW Key Battery It's probably the time to change your battery If your BMW key won't allow you to open your car or turn off the engine. It's a simple fix. All you need to do is remove the cover for the key fob then carefully remove and replace https://carkeyreplacements34757.csublogs.com/36543761/why-we-do-we-love-bmw-3-series-key-fob-and-you-should-too