After the end of World War I, the Treaty of Versailles forbade the German Empire from continued operation of the military railway.

The section from the Berlin Military Station to Zossen was dismantled in 1919, as the parallel Berlin-Dresden railway could be used instead.

Beginning in 1901, experiments with electric vehicles and high-speed steam locomotives were carried out between Marienfelde and Zossen.

The Research Association for High-speed Electric Railways (Studiengesellschaft für elektrische Schnellbahnen), which was founded on 10 October 1899 and included AEG and Siemens & Halske, electrified a length of 33 km of the line with three-phase power at 10 kV/50 Hz, using three overhead lines on poles that were about 5 to 7 m high located at the side of the track.

The Erlebnisbahn GmbH & Co. KG has been approved to operate railway infrastructure company since 27 August 2007.