What to Do If You Lose Your Audi Key It can be costly to replace keys that have been lost. With just a few steps, you can avoid high replacement costs and a hefty towing charge. First, check to see if you have an extra key. If not, search in https://g28carkeysolutions61114.livebloggs.com/36448099/audi-a3-key-replacement-101-this-is-the-ultimate-guide-for-beginners