Hi guys, I’m driving an Audi 80 B3 1.6 TD. Last week I noticed the control lamp for the coolant level on the display during the ride. My first glance was of course at the temperature, which then showed me over 100 °C. When I stopped I noticed that the 1. the fan did not run at all and 2. that it pushed the water out of the balance tank. Of course the first measures were thermostat and then swap Wapu, since the engine was still hot, but f, I had thought of the temperature sensor for the fan. However, since I had no one to hand, I simply put 2 cables in front of me in the interior and clamped the switch on so that I could turn on the fan manually. Also this had no effect, the engine nevertheless became too hot. After a short test drive I noticed, however, that the lower cooler hose, that was just warm to the wapu, while the upper one was already damn hot. So I took off both around the cooler you The only thing I could still imagine was air in the system. but it doesn’t vent itself?!?! If no, how did I unleash the right one? PS: Cylinder head gasket is only about 3 months old in advance Thanks for your answers, don’t know any more by now… I’m not sure if I’m going to be able to do it again.