How to Save Money on Audi Battery Replacement Is your Audi key fob having difficulty locking and unlocking? This could be a sign the battery is in need of replacement. To replace the battery, turn off the key made of metal and use a flathead screwdriver to open the back https://g28-car-key-solutions37385.blogdemls.com/29605451/it-s-the-complete-guide-to-audi-a4-spare-key