Do I need to buy 4 new tires for my Audi Allroad?

I have an '03 AllRoad and one flat tire (cannot be patched). Do I replace all? If so, why?Do I need to buy 4 new tires for my Audi Allroad?You can get away with replacing just the ones on the axle thats flat.Do I need to buy 4 new tires for my Audi Allroad?If you can match the tire make, and size, you can have the tire shaved to match the wear in the other three tires. if not I would replace all four. Below is some tech reading on tires and AWD.Do I need to buy 4 new tires for my Audi Allroad?Ask if they can put a radial tube in the tire, otherwise look for used, if not follow that tech info to the letter - I've seen people change one or two and nothing bad happened. That doesn't mean it will work for you.