Mmm -firstly welcome.
You say the water was above the max mark- this concerns me a little-Is it clean and is there any sign of oil in it?
The fan's not running so there could be a fault with the fan thermostatic switch- if you can locate that removing the connector and shorting it out should cause the fan to run which wouldidentify if the switch was shot.
Possibly the thermostat is stuck shut?
Not sure what the bottom pulley drives, is it spinning with air con off?
The air con not functioning shouldn't cause overheating.
i'm sure someone on here will have a bit more knowledge of the foibles of petrol CMax.
57 Titanium 1.6 110 DPF, X Sport pack, panoramic roof,Sony 6 CD changer with voice control bluetooth.