How to Save Money on Audi Battery Replacement Does your Audi key fob have issues locking and unlocking? This could be a sign that the battery must be replaced. To replace the battery, you must open the metal key with flathead, then pop the cover off using a screwdriver. Replace https://auto-locksmith86008.blogscribble.com/29924062/speak-yes-to-these-5-audi-a4-spare-key-tips