How to Reduce the Cost of an Audi Replacement Key If you own an Audi key to your car is something that you do not want to lose. A replacement key can allow you to get back to driving quickly. A new Audi key could cost between $280 and $475. https://autolocksmiths77922.vidublog.com/29179928/audi-a4-car-key-replacement-what-s-new-no-one-is-discussing