Replace BMW Key Battery It might be 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. Simply remove the key fob, replace the battery and gently place it back. Follow these steps to be https://carkeyprogramming30405.bloggin-ads.com/53561329/14-questions-you-re-uneasy-to-ask-bmw-3-series-key-fob