To test whether the car still have overheat problem, start the engine and press fuel pedal to RPM 3 for 10 - 30 minute (make sure gear is neutral).
That's all
Citreon also cannot use tap water!!! Must use their coolant, and lots of it - forgotten after so many years but it sure cost quite a bit!!! Many Jap and proton car mechanic s dont know about, all this air bleeding and coolant and if you get them to do your Citreon - be prepared for an overheating engine or burned engine!!! Get an experience Citreon mechanic, to take care of your car! Even changing timing belts - an experience one take 20 mins and when ask my regular Volvo soecialist mechanic to change the belt - took him 1 1/2 hrs and at the end the belt was damaged after running for 1 day! Bloody hell! What a car! or the mechanic inexperience problem?