How to Save Money on Audi Battery Replacement Is your Audi key fob having trouble locking and unlocking it? This could be a sign that the battery is in need of replacing. To replace the battery, simply open the metal key using a flathead and pop the back cover open https://g28-car-key-solutions98235.pages10.com/what-s-the-reason-audi-a4-spare-key-is-fastly-changing-into-the-most-popular-trend-in-2023-65785137