How to Save Money on Audi Battery Replacement Is your Audi key fob having difficulty locking and unlocking? This could be a sign the battery is in need of replacing. To replace the battery, flip open the metal key and use a flathead screwdriver to pop up the back cover. https://auto-locksmiths72790.blog5.net/72059629/the-best-audi-a4-spare-key-methods-to-transform-your-life