so i 2001 a4 2.8q 30v as a daily driver. it ran fine last night and this morning when i went to start it up the coolant msg and the hud screen popped up. i went and got some coolant for it started the car with the reservoir cap off to get rid of all air bubbles and after running for about 5 mins it started to misfire and i shut it off. had no smoke come out of the exhaust what so ever. heater worked fine when the car was on.

156k on body 98k on motor timing belt done 4k miles ago

went to try and start it again and itll crank over but not start.

any input ?

 

It's broke!

 

yeah i know it sucks to, but any ideas of what it could be?