How to Save Money on Audi Battery Replacement Are you experiencing issues with your Audi key fob not locking and unlocking it? This could be a sign the battery is in need of replacing. To replace the battery, open the metal key with flathead, then pop the back cover up https://car-locksmiths44908.webbuzzfeed.com/30575914/5-audi-a4-spare-key-lessons-from-the-professionals