My turn signals make a noise but do not come on. My hazard lights are working.

ck your blinker flasher.

Is the tire wear normal not unusual wear due to inflation issues or camber, cater or alignment issues? Look at Audi tt forums and or read /contact articles on www.tirerack.com Wear may just be due to the compound of tire chosen. I think the flasher unit is built into the hazard switch in that car.