I have been driving an Alfa Romeo 147 for a long time and the temperature indicator has been constant at 90 degrees already after a short time and then also constant for the complete ride. In the cold months the thermometer took longer and longer to climb on these 90 degrees and in the cold in the winter it fell back on the way to the 90 degrees and commute between lower temperatures. Should I go to the city and have to switch more and At the same time, it can be seen that I have been tipping coolant every three months for about two years. Oh yes, once I have been driving with almost no more coolant for a long time and there has been nothing at all about the temperature display! Apparently lucky! Are these two problems in connection and what is to be done at the workshop for what price of repairs?