How to Save Money on Audi Battery Replacement Does your Audi key fob have trouble locking and unlocking? This could indicate that the battery must be replaced. To replace the battery, you must open the key made of metal using a flathead and pop the back cover open using the https://g28carkeys10546.diowebhost.com/84948239/a-step-by-step-guide-to-selecting-your-audi-a4-spare-key