Mini 1 . cold heater no coolant pressure and fan always on

[anonymous-user]

Hi
My daughters Mini 1 1400cc 2008.
rad fan comes on as soon as I turn the key and stays on for 10 mins even if we don't start it. header tank is at full mark.
When warm there is no header tank pressure and heater is luke warm.
no visible water in oil on stick 0r mayo on rocker cover.

Seems to me like there is just no coolant circulation, clearly no pressure at all.

Do you have any thoughts please ?

[anonymous-user]

Thanks

Car has run fine and had services for 2 years. Worked fine on Thursday failed on Friday, no water pump or anything.
Thanks for the replies