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 must be replaced. To replace the battery, simply open the metal key using a flathead and pop the back cover open https://autolocksmiths87729.collectblogs.com/75601159/why-audi-a4-spare-key-still-matters-in-2023