Yes...it is freaky that the n62 doesn't have the aux fan...especially when you come from previous BMW ownership that did.
It was a great curiosity for me when I got my 06 4.4 ... I searched high & low for the aux fan...I thought that it may be hidden (sandwiched) between the radiator and the radiator fan. I eventually gave up and asked the forum if I was nuts.

(well...I'm probably still nuts...but no, the N62 doesn't have an aux fan in front of the radiator).
Proof? See image of hvissoer4's engine bay...not the absence of the aux fan in front of the radiator.