When a car runs out of coolant, the heater stops working and the temperature gauge drops from hot to cold till it starts to rise into the hot zone again and keeps going upwards.
When a car runs out of coolant, the heater stops working and the temperature gauge drops from hot to cold till it starts to rise into the hot zone again and keeps going upwards.
If this happens, you should take the car to one side and stop driving immediately. Do not try to add cool water while the