How to Save Money on Audi Battery Replacement Do you notice that your Audi key fob have issues locking and unlocking? This may 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 https://auto-locksmiths71127.howeweb.com/30621863/the-top-audi-a4-spare-key-gurus-do-3-things