What to Do If You Lose Your Audi Key Keys lost are a major pain and can be very expensive to replace. With just a few steps, you can avoid high replacement costs as well as a significant towed charge. First, check to see if you have a spare key. https://autolocksmiths74202.pointblog.net/how-audi-a3-key-replacement-rose-to-the-1-trend-on-social-media-71478883