Temperature and Water Indicator problem EMERGENCY

Friends 2004, 1.4 Hdı, my car lights up the water lamp and goes back when I put half a glass of water. The overheat indicator is also around 80 at idle, showing 80-90 when the vehicle is walking. What is the problem in your opinion?
Is this a crack in the water tank? Or is it from the gasket? kaancevik06 2017-07-28 18:40:30

The heat of your vehicle will be between 80-90. It gets between 90-100 in hot weather. There is a maximum of 110 on the slope, up to 110 is normal. But I can't say anything to the light burning thing. You have to looked at.

no problem, temperature is normal. water level switch may be faulty or the replacement water tank cap is defective.