Tom,
I had a 190E with the dual-fan setup. I had to remove both fans as a unit because you cannot get to the center bar bolts (the bar where the two fans seem to be bolted together). It was a while back but I rembered removing two top screws (10 and 2 0'clock position), two bottom screws (8 and 4 O'clock) and some bolt on top where the hood lock mechanism is attached. It takes time and patience but it can be done.

Dennis