Help, Seat Ibiza Refrigeration

Hello, I would like your opinion and advice. I have a Seat Ibiza 1.4 Gasoline 1999. The other day I had to throw some water, because I saw the temperature up and stopped the car and I saw it lacked water. Fill and followed to work and the needle did not move half. I thought K would have been the problem of the thermostat k I did not open, so that I change, thermostat and thermocontact and incidentally, temperature probe.rellene, purge and it works for a few days and the temperature without moving from the middle, the electro operates and went out, in principle all ok. But the lower sleeve followed cold with respect to the entrance. I thought k could be the pump and let go of the return to the expansion vessel and if I throw water. I don't think about, you would appreciate a Poko, before dismantling the water pump, k percent changed it two years ago, pk had fuga for the joint., Grcias for your opinion

Hello friend, I think you check the radiator, check with some temperature in the engine that the temperature of the radiator panel is the same on the entire surface of the panel, as well as the cells and boats, the radiator may be dirty and/or covered, I hope to help you, greetings !!

In all vehicles the upper sleeve must be hotter than the lower one is normal because the Elctro cools the water in the radiator and it decreases to the engine, that is normal, nothing is working well to worry.

The lower sleeve with the upper is a temperature difference since the one lower than the radiator that has cooled it or the air or the fan if there is a lot of difference, perhaps the covered radiator has been used if water has been used instead of liquid for refrigeration.

Thank you all for your response. The Saturday after changing the water box, with its new thermostat and temperature sensor, fill the circutio and purge with the car running and heating at top and without fan speed.Cogi the car and I went through the city, the temperature needle was correct (in the middle) .When rough rings ame In the two speed, hot air came out when it was going, but when I stopped in semaforos or a few revolutions, left cold. And I observed Ke for the expansion vessel I had already thrown water. This is the entrance sleeve to the hot radiator and with pressure, I think k something high. Did the water pump have thought today, now I release distribution, pump sack and apparently prefect. What can be? The radiator, but I breathe and antiforming and goes below the jet. The joint of the cylinder head? What mes meage pressure, but still the water should circulate without problem by the radiator, right? I am echoed. That you think, by the way it gives me the sensation that the car every day when it is cold when starting is more unstable to Ke al Ratin is already stabilized. Thanks friends