How to Save Money on Audi Battery Replacement Does your Audi key fob have trouble locking and unlocking? This could indicate that the battery needs to be replaced. To replace the battery, simply open the metal key with a flathead and pop the back cover up using the screwdriver. Insert https://g28-car-key-solutions49456.theisblog.com/30417474/8-tips-to-up-your-audi-a4-spare-key-game