you forgot to say 16v or v8 valves?
and what you did before air got in to water jackets.
are you just overheating and wondering why?
park car up hill, cold engine.
new thermostat, did you put the sensor side down (spring and wax pellat side)
did you put the bleed hole forward on the stat so it can burb.
worse case ( not needed really) but...
if you really had air in there, you could just remove the STAT and fill it up to full,then
put back the stat, then then fill rad the rest of way. then it would in fact be 99% free of air, Stat is highest point , besides RAD.
this car is not every known to hold air, but that tiny bleed hole is important.
Now my jeep thats another matter.
talk to kick owners most people generalize and that dont help much on your car.
does this help ?
http://carfix.stufftoread.com/t-belt/hoseside-1w.jpg
cheers