WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Insert radiator upper hose as far as the projection of the thermostat housing.
Align the mating marks on the radiator upper hose and hose clamp, and then connect the radiator upper hose.
Fig 1: Identifying Radiator Upper Hose And Hose Clamp Mating Marks