Hello my dear friends, I added a DT to my condition 2 months ago TÜV reports from 85 until now. Since I am dependent on my DT in winter I looked into my water tank once, I did not find a coolant but chocolate pudding [see videos and photos]. It does not squirt conspicuously only after accelerating it smokes a little [normal for a 2 bar]. Now I ask myself the question what can this be? Temperature problems I have never had before as well as It was still warm. What is that slime? Is it enough to rinse with distilled water? lg