Moin people. I have a problem or my moose. Something is not right on the cooling circuit. V70 I B5254, 170hp, 232tkm. Was visiting friends today. 70km to, 70 back. On the way there went after about 50km the indicator light, when I was standing on the slope. When the car was standing straight again, it went out again. I pushed the whole on air in the cooling system, because I changed the cooling liquid completely shortly before. With my friends I then still have a balance tank full of cooling liquid. So far ok. On the way back my indicator light went from the cooling circuit again after about 30km, and did not go out. Compensation tank full up to the top and apparently no leak. I then shrugged home at 60-70km/h, but always the temperature indicator in the eye. Engine did not get hot according to the indicator; it was nailed to the middle like a nail. At home the intake into the cooler is warm, so that you can still touch the tube. The cool water also (had the Beh The thermostat is new (since 120km) as well as the thermostat sensor. I changed at the beginning of the week, because despite 80 km of motorway at 170km/h up to a maximum of 1/3 of the temperature indicator. I also had no liquid in the balance tank. I then filled up and ordered parts. Coolant is the original of Volvo (blue green), mixture 1:1, d I changed it completely, because I did not know exactly how old the old cooling liquid is, and anyway grade 2L had to drain for thermostat. All parts are new from Skandix and according to information suitable for the vehicle. Since then the thermostat or the display function again perfectly. After c.a 7km operating temperature. The only thing has changed is the permeability of the thermostat. Before 90 now 92°C. No, the decency pointer in the balancing tank does not depend. And I have the impression that he only does it when I travel longer. I have been a lot in the city and around it yesterday. He didn’t have any problems with the cooling circuit. I have a bit of the water pump in my suspicion. Can that be true? Achso. . .The timing belt was changed 500 km ago (mechanist for wear and ignorance). can this be related to it?