How to Save Money on Audi Battery Replacement Does your Audi key fob have trouble locking and unlocking? This could indicate that the battery is in need of replacement. To replace the battery, flip open the metal key and use a flathead screwdriver to remove the back cover. Insert a https://carlocksmith37455.shotblogs.com/15-shocking-facts-about-audi-a4-spare-key-that-you-didn-t-know-44245413