HGOn the way out?

[rtha6551]

Driving home earlier on, heaters blew ice cold as the temperature needle rose up to 90 and back down in the space of 10-15 seconds, before the heaters went warm and all was as normal 

Temp needle stayed at 70 for 10 or so miles then rose up to 80 when given a little pasting, has been normal since but people reporting HGF shortly after theirs done the same? 


Thanks