Hello, I had the ZKD changed at our V70 1.6 DRIVe 2016 at Volvo, at approx. 170,000 KM, now at 220.000 KM the message “cooling water level low” comes regularly with longer motorway rides and around the balance tank it is moist. On the container is permanently overpressure, even if the car has cooled down and then pushes the level again over the Min mark when opening. Autowerkstatt has checked the cooling system.. “everything dense”.. also no CO2 measurable.. Before approx. one Half a year I had a massive wild damage (8,000 euros damage), in which also the complete cooler was replaced…. the problem with the cooling liquid then occurred 8 weeks after the repair on a longer highway ride at high speed. Free workshop suspects cylinder head seal. Is it conceivable that with a V70 after within 50.000 KM twice the cylinder head seal is defective? Is another damage still conceivable in connection with the wild damage? I’m grateful for your ideas.