Replacing a BMW Key Replacing a BMW key is a procedure that can be made easier by having the correct information. You'll need an ID number that is valid as well as proof of ownership as well as the key code and the model year and make of your vehicle. https://www-thekeylab-co-uk51849.digitollblog.com/29964816/how-to-identify-the-bmw-key-fob-that-is-right-for-you