How to Save Money on Audi Battery Replacement Does your Audi key fob have issues locking and unlocking? This could be a sign the battery is in need of replacement. To replace the battery, open the key made of metal and use a flathead screwdriver to remove the back cover. https://car-locksmith86668.widblog.com/84992655/it-s-time-to-expand-your-audi-a4-spare-key-options