How to Save Money on Audi Battery Replacement Is your Audi key fob having trouble locking and unlocking? This could be a sign that the battery is in need of replacing. To replace the battery, you must open the metal key with an flathead and then open the back cover https://g2888874.develop-blog.com/36191186/15-amazing-facts-about-audi-a4-spare-key-that-you-never-knew