How to Save Money on Audi Battery Replacement Is your Audi key fob having trouble locking and unlocking? This could be a sign that the battery is in need of replacement. To replace the battery, flip open the metal key and use a flathead screwdriver to pop up the back https://g28-car-keys75273.blogmazing.com/29663128/10-healthy-audi-a4-spare-key-habits