Siena 1.7 TD 98 Heat

Hello everyone I tell you that I have a Siena TD 98 and if I pass it from 120 130, heat up without problem tours of 500 600 km to 140 150. The only thing that you notice is that it seems that it consumes a poce of water (it has no water losses). Any proof that can do or review will be of great help, because of the doubts I tell you that the electro works perfect, it is more as I use it I also have a key to leave the electro on, more than anything in summer that I have the car an average of 12 hours turned on, the engine has 344000km and about 60000 it relates an adjustment, for the doubts I fix me when it heats up to see if there is a pressure of the A lot of pressure does not circulate the water well) and do not notice anything out of the ordinary.

The most logical thing is that the radiator is not good, the bad thing is that cleaning it can not be done, you can try to make a cleaning boat but it will be worse, something else may be that the circuit does not have enough pressure, or that the water pump does not work well, but this is rare, do not look for strange things without looking first at the essentials, start by the radiator

I think the same as emerald, first look for simple things, radiator, water pump, thermostat ...

Then there will be time to suspect the worst, for example, if the very black expansion glass is observed and the water has bright traces of oil or black

bubble Bad, it will be enough to loosen the cold vessel cap, and start the engine by tightening it immediately, if accelerating the engine thoroughly upload air bubbles to the expansion vessel is a symptom that compression gases fuck to the cooling circuit.

But, first the basics and the cheapest and most likely.

All the best

Ok I will try to check the radiator this weekend, another question that I ask is when the car is hot the water of the tank has to stay in its lugra, go up or down, I with the hot engine touch the pipes and are not inflated but if I turn on the car without the water tank cover seems).

We will see friend: The water of the expansion bottle must rise and lower depending on the pressure generated in the cooling circuit due to the effect of the temperature of the refrigerant element, that is: if the temperature increases, there is more pressure and consequently the water expands towards the bottle. If the temperature drops, pressure and water decreases returns to the circuit, so the level of the expansion bottle will not always have the same level.
I am struck by the fact that you comment when you say that "... if you start the car without the bottle plug within a few minutes the water flows towards it ..."
well, this could be normal; Normal because in theory the water has already heated enough to overcome the resistance offered by a valve that is closed by the action of a spring and that is usually found in the radiator filling cap.
I say that this behavior could be normal if the premises commented above are met, but they would not be so much if they are not met, then then it would be necessary to suspect the effectiveness of the radiator or valve plug valve that also carries the expansion bottle to achieve the “thermosiphon” effect. (But this is another story)
apart from this whole “roll”, I must reiterate the above commented by the fans: first to simple, although… we must not forget something very important and that although it is necessary that the radiator must be clean internally, it is no less that it must be so much or more on the outside.
I want to say that with a water jet with a little pressure, clean the radiator on the outside, remove flies, and bugs that are deposited and obstruct the circulation of the air that has to cool the pipes that contain the refrigerant liquid.
Finally, do not forget to take a look at the alternator's strap that in turn moves the water pump, verifies the tensioning status of the belt and checks the accommodation of the pulleys checking that they are clean of oil so that the belt does not skate on them.
This in a gross way, because the truth is that the issue of heating "gives a lot."
Receive a cordial greeting and you will tell us something.
Zulu