waterbed indicator problem

The vehicle sometimes shows this indicator, but now it started to appear constantly and I started to ignore it, I am really afraid that someday the water will end, anybody who has had this problem before have a good day.

When the coolant indicator lights up, in what condition is the engine's water level, the reserve tank is at the maximum candle level, or is there any water?

I had the same problem while buying my vehicle, we showed the masters or something, they said the sensor would change, they asked for money, I researched it a bit and decided to make it myself. As a price of 50 pounds 20 pounds Aliexpressin değiştirdim.türkiye receive a price like this var.parç (https://www.otoyedekmarket.com/urun/peugeot-206-radyator-ek-depo-seviye-musur) is installed next to the water tank sensor.You can understand from the photo here (https://www.duyukoto.com/PEUGEOT-206-RADYATOR-EK-SU-DEPOSU-14HDI-2001-2004,PR-5030.html) It is very easy to disassemble and install. First, pull the antifreeze in the tank with something like a serum hose and pour it into the bottle. Then you need to remove the socket of the sensor. Then slowly pull the Sensor to yourself by making it right and left, remove it and insert a new one, re-plug the socket clip. When you put the antifreeze you emptied the last time, run the vehicle for a few minutes without closing the cover of the water tank, then close the cover, it may be deficient. This process takes two minutes. I tried very hard for this problem, I tried everything from disassembling and washing the radiator tank completely, but sensor replacement is a radical solution. Let's take it easy :)