33+ 2004 Audi A4 Quattro Tire Size 21 city / 30 hwy. Find tires that fit your audi a4 quattro today at justtires.com. 2004 Audi A4 Avant 1.9 TDI S-LINE Sport Quattro 5dr - Airedale Cars from www.airedalecars.co.uk Find specifications for every 2004 audi a4: 2004 audi a4 1.8t fronttrak. Detailed features and specs for the used 2004 audi a4 1.8t quattro sedan including fuel economy, transmission, warranty, engine type, cylinders, drivetrain and more.