Reporting low cooling water level – Volvo V60 D5 Model 2013 (built in 2012) 55000 KM

Hello, I have a V60 D5 Model 2013 (built in 2012) Polstar. Running power 55,000 KM. Be a few days the car shows me that coolant would be low, but only in very sharp turns or at full speed acceleration. The level is however exactly between MIN and MAX. I still have a little cooling water after that and now it is slightly over MAX. Nevertheless, the report comes with sporty curves, although not quite so often, but it still comes. In front, in front of the cooler is a thick hose coming from the cooler. This is EIS cold. Fan is working. Anyone a tip? Thank you Rolf