How to Save Money on Audi Battery Replacement Are you experiencing issues with your Audi key fob having trouble locking and unlocking it? This could be a sign that the battery needs to be replaced. To replace the battery, open the metal key with flathead, then pop the back cover https://g2858108.is-blog.com/36557685/a-guide-to-audi-a4-spare-key-from-beginning-to-end