Replace BMW Key Battery If your BMW key isn't opening the doors of your vehicle or turning the engine, it may be the time to replace your battery. It's simple to fix. All you have to do is take off the cover for the key fob then carefully remove and https://thekeylab-co-uk62880.bloggip.com/30199591/how-to-choose-the-right-bmw-key-fobs-on-the-internet