Hello dear forum members, I have a little problem with my Audi. Since I don’t like to have cardboard in front of the cooler this year I wanted to ask the following questions: Why doesn’t my cooling circuit close?. I have the problem that the box does not get warm in winter. Now I just hit why. Tortz low engine temperature gets my cooler warm (should only be the case at 90 degrees). Since I still had to get fixed tippings I thought that I could take one for the short distance The following parts could be: The two temperature sensors next to the motor (white and blue, only I miss the values, but were changed 2 years ago) And the valve itself. But I don’t believe that, because it does not open without a fuse and the small cooler circuit works. Does anyone have the data that the sensors (for coolant temperature) should have? And what else can it be. Thanks already. Sometimes in advance. Sincerely Stefan