Good day, with my V60, year 2011, I have had the following problem since summer: When it got so hot this year I got the warning on the trip on the holiday that the coolant level was low and I should stop. I was first surprised because I had never had this message before. Then I refilled coolant at the next gas station and everything was first normal again. Although I had already seen at the gas station that an abnormally large puddle was under the car. So m I had to replenish it a few hundred kilometers further, already on vacation. I also bought a leak sealer and poured it into the cooling water tank. It dripped further under the car. In the following days it became cooler in Norway. I noticed no more cold water loss at all. No puddle, no warning message. That went one and a half week. It was only in Germany, where it was much warmer, that the problem became noticeable again. I regularly filled up water and drove on normally, because there were no problems and I wanted to postpone an expensive repair so shortly after the holiday. That was in August. Now in September the problem suddenly worsened. Over night almost a whole cooling water tank ran empty. I filled up constantly. But since the refilling did not bring anything, or about Na I didn’t want to replenish everything overnight until I had a workshop appointment. I didn’t make any sense. Then I got sick (cold) and in the morning I had to go to school only 3 km and 3 km to drop my daughter off. Otherwise I stayed at home and didn’t fill up any more. Since I thought the short distance was irrelevant. And then everything runs out in the stand anyway. Well yesterday, I got back up again for the first time (after three days). only the indication that the level was low did not go away. It seemed as if the cooling water did not arrive where it should or was measured. Strange. Where is the level measured. Can there be something smeared on the way there and sealed with it, so that no water can get through? What can have happened? There is also no stain under the car, although I had filled up completely. What can have happened? It is weekend and I can also no longer in the workshop. Best greeting Sighard