Over time your wheel can become fused to the hub. Lay on your back and give the lip/tire a few good kicks with the heel of your foot - it should break free.Is there some little secret to changing the tire on my Audi A6? Lugnuts are loosened, jacked up, pin put in place of the top lug, rest of the lugs removed... wheel doesn't come off. What's the deal? All help is greatly appreciated.