Getting a BMW Spare Key You may require replacing the battery in your BMW key fob. You might want to upgrade to smart keys that use your smartphone as a replacement for a key. For security reasons, replacement fobs must be purchased from BMW and designed specifically for your vehicle https://www-thekeylab-co-uk99059.widblog.com/85136593/a-an-overview-of-bmw-key-1-series-from-start-to-finish