How to Save Money on Audi Battery Replacement Are you experiencing issues with your Audi key fob not locking and unlocking it? This may be a sign that the battery must be replaced. To replace the battery, open the metal key using an flathead and then open the cover off https://g28carkeys61039.blogprodesign.com/52048521/15-startling-facts-about-audi-a4-spare-key-that-you-didn-t-know