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 must be replaced. To replace the battery, open the metal key and use a flathead screwdriver to open the back cover. Install https://car-locksmiths99540.bligblogging.com/30718720/the-full-guide-to-audi-a4-spare-key