Mk2 Punto overheated during MOT,fine all other times?

[rumpelstiltskin]

Mk2 punto is normal during driving,but overheats if idling for a while,fan comes on fine,anyone any ideas?

Edited by rumpelstiltskin on Monday 2nd September 18:51

[Mikey G]

Sounds like time for a flush and maybe check the water pump, and add a new thermostat to me.

[one eyed mick]

Isit actualy o/heating ? may be normal fan operation

[rumpelstiltskin]

one eyed mick said:

Isit actualy o/heating ? may be normal fan operation

Water was pissin out the overflow.Seemingly red light wasnt on dash to say it was overheating?

[neiljohnson]

Fans have a habit of partially seizing so they don't spin fast enough either this or maybe the pressure cap has had it

[ouninpohja]

neiljohnson said:

Fans have a habit of partially seizing so they don't spin fast enough either this or maybe the pressure cap has had it

What this man says, try a new rad cap

[rumpelstiltskin]

Flushed radiator today which was quite clean.Changed thermostat, filled with fresh antifreeze and bled it.Idled for 20 minutes with no dramas! Fan comes on ok.Wonder if its just been an air lock?