had the water pump change last year,
wel i was fiddling around earlier, drained the water down to have a peek at the thermostat on rad and then fill it back up again also i attached back the relay box that lives underneath the battery, filled coolant back up left it to run for 10 minutes and went to 100deg then my bro leaned into the engine bay and knelt on the bumper and the fans came on full blast
must of been a loose connection or summat or an airlock arounf the thermostat