From Dusseldorf:
After crossing the South Bridge, continue to the Neuss-Hafen exit

At the intersection, continue straight; turn left at Hammfeldamm, continue until you see the headquarters of the Ferrania administration

From all other cities:
From the highway (see map) take the Neuss-Hafen exit

At the intersection turn left and continue following the directions on the map

At the Esso Station, turn left at Hammfelddamm and continue until you see the headquarters of the Ferrania administration