Replace BMW Key Battery If your BMW key isn't opening your vehicle or turning the engine, it may be time to change your battery. It's a simple fix. All you need to do is remove the cover for the key fob take it off, then replace the battery, then put https://carkeyprogramming92155.blog-kids.com/30297267/the-most-effective-bmw-key-fobs-tips-to-transform-your-life