Hello guys, someone can help me.With my Volvo 850 the yellow arrow flashes and that is driving, so when the engine gets warm. But the gearbox switches normally.Somehow the engine suffocates while driving and does not get its 140 hp out.I always have to turn up the water holder a bit because you can see a lot of pressure from the water hose and then he drives back normally.I don’t know if that has anything to do with the arrow.