How to Save Money on Audi Battery Replacement Is your Audi key fob having difficulty 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 https://g28carkeys81761.blogs-service.com/60871007/8-tips-to-increase-your-audi-a4-spare-key-game