Car Key Replacement Tips For Your Audi Q7 A majority of people have lost their keys at some point. The key fob of an Audi is handy for Virginia Beach drives but the battery will eventually degrade. A replacement key from an Audi dealer can cost between $280 to $475. https://auto-locksmiths13630.dailyhitblog.com/35274825/5-laws-anybody-working-in-audi-a4-car-key-replacement-should-know