How to Save Money on Audi Battery Replacement Is your Audi key fob not locking and unlocking? This could be a sign the battery is in need of replacing. To replace the battery, open the metal key using a flathead and pop the cover off with the screwdriver. Replace the https://g2856673.slypage.com/30683000/a-complete-guide-to-audi-a4-spare-key-dos-and-don-ts