In brief
Heat exchange is separated from the creation of circulation.
Useful to know
The engine radiator gives off heat from the coolant to the surrounding air. HELLA presents it as a component for maintaining an appropriate operating temperature in a specific cooling system. [1]
When searching for a part, compare the exact performance and relationships. Similar external dimensions do not mean the same installation or capacity. The high temperature does not automatically point to the radiator: the flow of liquid, air and control are different elements. For a description of a problem, write down the mode and message on the dashboard, instead of determining a cause just by a warm engine feel.
Sources
For further detail and to check the information: