How to Save Money on Audi Battery Replacement Is your Audi key fob not locking and unlocking it? This could be a sign that the battery needs to be replaced. To replace the battery, you must open the metal key with flathead, then pop the back cover open using the https://auto-locksmith86008.blogscribble.com/29924062/speak-yes-to-these-5-audi-a4-spare-key-tips