Overheating ?

[FirstPuma]

hi guys

yesterday i went for a drive with puma drivers.nl but at some point the needle of the temp.gauge went all the way in to the red. i instantly pulled over to check if something was wrong but could not define anything. i let it sit for 10 minutes with the bonnet open then moved on cause the temp gauge had dropped to normal. but after that when i put my foot down the needle went up en when i backed of the needle instantly went back to normal. also my heater only blows cold air.

at this moment i have no idea what it could be

Greets ruben
1.4
Black puma

 

[Dwighet]

Id suggest getting an OBD Bluetooth reader. plug it into the socket in the passenger side foot well and an app for your phone(torque is a good one) so you can see what the coolant temp is getting to. You may have a dodgy sender and the actual temp is fine...

As for as cold air only...Id say your heater control valve is shot...

 

[siju]

As long as the temperature rises + simultaneously the heater does not work I would agree that the heater control valve is blocked.
The other two reasons would be the water pump or the thermostat but I think that in that case the heater would blow hot air.

Alex