How to Reduce the Cost of an Audi Replacement Key If you own an Audi, the key to your car is something you never want to lose. But a replacement key can help you get back on the road quickly. A new Audi key costs between $280 and $475. This https://g2823931.thezenweb.com/20-up-and-coming-audi-a4-car-key-replacement-stars-to-watch-the-audi-a4-car-key-replacement-industry-67631428