try to change 1st your radiator cap. then observe lalo na sa traffic. pag long driving kase hindi talaga siya mag overheat.

have you check the hoses?
pag umokey na siya, try to put a coolant it really helps ( lalo na brand ng caltex, sorry i forgoy the name eh )

pag nag over heat pa din; just go to the professional aircon specialist, wag yung sa tabi-tabi hehehe

okey no prob. EB tayo minsan