How to Save Money on Audi Battery Replacement Is your Audi key fob not locking and unlocking it? This could be a sign the battery is in need of replacing. To replace the battery, flip open the metal key and use a screwdriver with a flat head to pop up https://g2809755.glifeblog.com/29180649/5-audi-a4-spare-key-lessons-from-the-pros