My radiator fan runs then stops with a humming noise. on 2006 Audi A6 Quattro

Noisy radiator fan. What is the engine temp level on the dashboard?

Asked by for the 2006 Audi A6 Quattro
Should be half on the gauge 195-200
Noisy radiator fan I can only hear when I turn off the car when it is hot
Yeah thats normal, it cooling down cooling system