How to Save Money on Audi Battery Replacement Are you experiencing issues with your Audi key fob not locking and unlocking it? This could indicate that the battery is in need of replacing. To replace the battery, open the metal key using flathead, then pop the back cover up using https://carlocksmiths68698.bloggazzo.com/29518502/what-s-everyone-talking-about-audi-a4-spare-key-today