Car Key Replacement Tips For Your Audi Q7 Many people have lost their keys at some point or another. The key fob of an Audi is convenient for Virginia Beach drives but the battery will eventually degrade. A replacement key from an Audi dealer can cost between $280 to $475. https://g2847115.kylieblog.com/30310772/17-signs-to-know-you-work-with-audi-a4-car-key-replacement