How to Save Money on Audi Battery Replacement Does your Audi key fob experience difficulty locking and unlocking? This may be a sign that the battery needs to be replaced. To replace the battery, open the key made of metal using an flathead and then open the back cover up https://g2881892.ampblogs.com/why-audi-a4-spare-key-is-your-next-big-obsession-66646804