How to Save Money on Audi Battery Replacement Does your Audi key fob have trouble locking and unlocking? This could be a sign the battery is in need of replacement. To replace the battery, open the key made of metal using a flathead and pop the back cover up using https://auto-locksmiths71127.howeweb.com/30741121/is-audi-a4-spare-key-just-as-important-as-everyone-says