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 replacing. To replace the battery, open the key made of metal using flathead, then pop the back cover up using the https://auto-locksmith81522.blogsmine.com/30636604/what-s-the-reason-audi-a4-spare-key-is-everywhere-this-year