How to Save Money on Audi Battery Replacement Is your Audi key fob having trouble locking and unlocking it? This could indicate that the battery must be replaced. To replace the battery, you must open the key made of metal using an flathead and then open the back cover open https://g28carkeys40041.blogolenta.com/26932102/10-audi-a4-spare-key-friendly-habits-to-be-healthy