Daewoo Nubira Station heating

I have a Daewo Bubira Station 1.6 and I have already changed the heating radiator twice. The problem is that the glass tarnish and come out cold air on one side and warm air on the other. It is a real suffering every winter. I do not want to send it to the mechanic and I want to disassemble the system to see what may be happening. A mechanic recommended me to make a liquid to seal possible leaks of the heating system but the problem continues. I would appreciate your help for your solution.

Hi Valenzuela!
I recommend that you see this link:
gm.ws123.net/en/gmde_tis_start.html
is a complete manual of GM/Daewoo, there you can get the fault and everything related to your cloud
luck!

How the drama is apparently easy, first set if the water level of your radiator decreases on the other hand you must have an open or stuck air inlet tongue you must take the plastic regalba under your windshield, comment as it went.

First which fuel the reason for heater changes.

What glass tarnish, the panoramic, the sides of the doors? If this happens it may be because the small ventilation gates are not well adjusted, that is, they do not seal and let air pass either cold or hot; if they are from kids when moving them you will hear a noise when they stick with the walls where they should seal, this if your control control is manual. If your control control is electronic, they move by electronic motorcites, it could be that they do not make the full route and they would have bad would have to replace them you would have to disassemble a little to reach them and check it.

Suppose the gates reach their journey if it is a car with some years, it is most likely that they will lose their lining the gates, so a gate arrives as a route does not seal. And you have a loss of ventilation by the ventilas.

Now that it goes cold on the one hand and warm on the other; it may be lack of refrigerant of the A/C. in some cars when loading the refrigerant in the cool to cool from left to right, others from right to left. Less than you have individual heating. OR HORE THE LIQUID THAT THE MECHANICS DEVIOUS, WHICH IS THE REASON; In particular I do not recommend those liquids.

I hope you have said anything here we are greetings.