How to Save Money on Audi Battery Replacement Do you find that your Audi key fob have issues locking and unlocking? This may be a sign that the battery must be replaced. To replace the battery, simply open the metal key using an flathead and then open the back cover https://g28-car-keys43406.canariblogs.com/the-top-audi-a4-spare-key-tricks-to-transform-your-life-45401247