I had installed a new thermostat myself in the autumn and then suddenly an increased temperature (93 – 95 degrees) and the whole here in the forum was posted… then tended to calm down. In the meantime there were also 2 – 3 threads with the same topic, which have after that also increased normal temperature… I had to settle down with it. Now that it is clearly warmer outside, the whole extent shows up: it is in the middle of the country road ride (so 95 degrees), as soon as I stand at the traffic light for 2 – 3 minutes, it is 100 degrees, fans are running naturally. That just can’t be healthy for the engine… the joke is that this is already the third thermostat that makes the quatch… nominally 87 degrees opening temperature, and then in the water bath: makes at approx. 92 – 93 degrees only slow on… shortly before the boiling point. I had an original VW, an elector and a beam. I plug in an “old” that comes in a little too early, it remains at 84 – 93 degrees, it’s not completely cooled, otherwise it’s absolutely cooled.