Replace BMW Key Battery If your BMW key isn't opening the doors of your vehicle or turning the engine, it could be the time to replace your battery. It's an easy fix. All you have to do is remove the cover for the key fob, carefully remove and replace the https://thekeylab-co-uk62880.bloggip.com/30253027/what-bmw-key-fobs-experts-want-you-to-know