How to Save Money on Audi Battery Replacement Do you notice that your Audi key fob have trouble locking and unlocking? This could be a sign the battery is in need of replacing. To replace the battery, open the metal key with a flathead and pop the cover off using https://g2809755.glifeblog.com/29480908/how-to-identify-the-audi-a4-spare-key-that-s-right-for-you