Hello, I drive an Audi 80 B4 2.0, 180.000km, Bj 93. Consumption so at 8-10 liters (now in winter about 25% higher) The temperature indicator (or cooling water temperature) is always in the range between 50-70 degrees. Only once I reached the 90 degrees (2h highway in summer), I even remember that the coolers have been approached once. Well, I think my thermostat is defective (in the checkbook there is nothing about an exchange). What do you think? a then already, but never over the 90 egtl. Where is the thermostat and how can I expand it? I read here in the forum that you can test it in the cooking pot, I would like to try that. Normal display would seem to always be around 90 degrees, or I am wrong there. I have concerns that my B4 might make a longer cold run if the temperature does not go up. From the ventilation it comes out after 2-5 minutes quite warm. But it is not “hot”. It belongs to a friend that with a warm engine + fully turned up ventilation, the hand can not hold any longer in front of the slits because of the height, but with me the temp that comes out is rather pleasant ! Or could something else be broken? Many greetings, Korti2k