Pejo 206 Temperature Problem?

I have a Pejo 206 sedan 2009 model vehicle, I can not solve the problem of the vehicle's temperature. Unlike other vehicles, I have a problem that the temperature does not rise, on the contrary, it does not increase or decrease when it rises. I run the car in the morning and I go to the city for about 20 km, sometimes it sees 80 at 4 km, and then it drops to 50 degrees, then it goes up again, the long road takes up in the city, it reaches 70, it does this 3-4 times, then it stays at 70 and then after a certain period, he comes between 80 and 90 and stays there. Sometimes I go 20 30 km, it does not exceed 70, then it comes to 90, and after a certain period of time, it falls to 80 and stays between 80 and 90. The last termastat said that before that it changed twice, I went, I bought the original from the chassis, I did not change. Recently, a small road uphill falls below 70, sometimes below it, and it takes a long time to reach 80 again, even if I enter the city traffic. I stop the car at 70, and when I start it after 5 minutes, the temperature is over 90, it starts to drop again after working, sometimes it goes up to 80, sometimes it goes down to the 70s. The movement officer has not changed. I went to the master, he says all is normal, I went to the service, they connect the work to LPG. Recently I went to Mugla from Izmir, I went between 80 and 90, I went there between two districts, I came, go, there is 40 km, the temperature of the vehicle did not exceed 70. If anyone knows the mugla, from Köyceğiz to Dalaman. Then I had paid Izmir, and when I went there, the car did not exceed 70 until I left the clumsy overpass, and then I came to the odemis between 80 and ninety. When I came to Izmir from Odemis, I went to 35 km road with 80 km and 90 km speed. The vehicle did not exceed 50 degrees, once it came to 70, then it came down to the peripheral road at 110 km speed, the vehicle was 3000 rpm, it came to 85 degrees after 10 minutes and until 80. It did not go under, but it never came to 90 degrees. At the time of these events, the air temperature was 15 20 degrees. The last master I went to said one of the 3 most interesting malfunctions I have seen in my life, he said that this work will exceed me, and now I got cold from the car. Anyone who has an idea or has the same problem and finds a solution?

Possible reasons are;

1. Thermostat

2. Temperature sensor

3. The display may be defective and not displaying the actual value.

4. The brain may be malfunctioning.

When the temperature is 70, if the touch of the radiator is hot, the thermostat is defective. If it is cold, it is solid.

Connect it to the computer and check the display temperature and the actual temperature.

When there is a malfunction in the brain, there are often lots of heat related errors. Sudden rise and fall are many.

Edit: You have already written your problem in the sub message. If it shows the engine temperature minus, it strengthens the possibility of brain failure.

If it shows -39, there may be a problem in the brain or cables. You just changed the client. I will say that you have the fan resistance and the roles checked, but did you ever notice the fan working?

Good day, the radiator on the car is not original, I asked for the big little thing you said, but it was the original size on it, but I could compare it with the 206, but this situation started to bother me well.

My vehicle mixed it with oil two months ago. When I asked for it, I changed it because the thermostat body of the vehicle was cracked, then I did it, and the thermostat body has two chambers inside it, one side is passing, one side is the oil master inserted it again, it has changed the water, and that day the vehicle is today neither decreases nor mixes oil. But I have been experiencing this heat problem for 1 and a half years. I spoke to a master today, the circulation of the vehicle is faulty, he said. If the circulation is defective, it will not increase the temperature. They also said that I had it done in the gasket test, no problem.

If there is a problem in the circulation, the temperature will not be low.

If there is a problem in the circulation, the temperature will not be low.

If the demanding gasket is troubled, there should be some problems such as swelling in the reduction radiator pipes, the water in the expansion oil coupling expansion boiling and beyond boiling. . The masters who I said did not give 70 degrees in the clumsy, everyone wants it, how beautiful the vehicle does not heat, use it, says that the number of masters who said it was at least 10. In my research, the engine temperature was 90 degrees for the most efficient operation of the engine. He says that both of them can be very harmful for the engine. Today, I talked to two masters, one said gasket, one said circulation, and I didn't know what to do.

The ideal temperature is around 90 degrees. So they put in a thermostat so that when the engine is cold, it gets hot quickly without circulation.

Exactly, the thermometers have the ones set for measuring the ambient temperature. If there is, it can be tried.

The ideal temperature is around 90 degrees. So they put in a thermostat so that when the engine is cold, it gets hot quickly without circulation.

Exactly, I know so, but I think the masters outside think differently.

Good night my brother blows the heating of the vehicle hot, and even a master said something like looking to show the heating well, I couldn't understand it either. One day, I made the measurement with the device you said two days ago, and the engine temperature changed from 88 to 93, measured the thermostat area and turned on and off the thermostat. He said that one of the most interesting 3 failures I have seen in my life and in the end, everything is working, but there is a problem, the vehicle said.

the same problem I live in my car, I couldn't find a solution, I don't mind anymore, they said go to the last brain worker, I went and I drank

the same problem I live in my car, I couldn't find a solution, I don't mind anymore, they said go to the last brain worker, I went and I drank

Good night for my brother, have you ever been servies for this problem or is it the same piece you changed in hot weather?