Loud fan noise from engine compartment?

Hello guys, I hope I don’t have a new Antara problem: Did he hear a loud fan noise from the engine room on the track of about 30 km tonight, the BC showed a consumption of 14-15 liters in 5th gear at Tempo 100. The fan ran quite long and could not be calmed by turning off the ignition. But at home he was out? Does anyone have any idea what that was again?