How to Save Money on Audi Battery Replacement Do you notice that your Audi key fob have issues locking and unlocking? This could be a sign that the battery is in need of replacement. To replace the battery, open the metal key with flathead, then pop the back cover open https://car-locksmith17735.xzblogs.com/71107646/how-audi-a4-spare-key-changed-my-life-for-the-better