Düsseldorf-Bilk station is now served only by the Rhine-Ruhr S-Bahn (slow regional trains) and is connected by the lines S 8, S 11 and S 28 to Neuss, Mönchengladbach, Kaarst, Wuppertal, Hagen, Erkrath, Mettmann, Dormagen, Cologne and other parts of Düsseldorf (Central station, Düsseldorf-Gerresheim,...).
In addition to heavy shunting and line duties the locomotives were also employed on steep lines such as the Friedbergbahn (Suhl–Schleusingen), Scheldetalbahn (Dillenburg-Gönnern), Rennsteigbahn (Ilmenau–Schleusingen), the Erkrath–Hochdahl ramp and the Murgtalbahn (Rastatt–Freudenstadt).
The three castles of Windhoek, Heinitzburg, Schwerinsburg and Sanderburg, are what he is best known for but he also built the Gathemann and Erkrath buildings and was involved in the erection of the Tintenpalast.