The entire line was rebuilt on an embankment with bridges over intersecting roads, including Kaiser-Friedrich-Strasse (now Sonnenallee) and Kiefholzstraße.

Following the Nazi seizure of power in 1933, it created plans to turn Berlin into its World Capital Germania.

This gave greater importance to the Ring Bahn, so that it would be used by all suburban trains and act like a big roundabout.

The link to the Görlitz line was assigned an important role, but especially for long-distance, regional and freight traffic.

The remaining pair of tracks would form part of a new route connecting with the Lower Silesian-Markish line at Köpenick.

With the construction of the Berlin Wall on 13 August 1961 the line was closed about 270 metres beyond the station Köllnische Heide.

In the late 1970s, the embankment on the northern side threatened to sag, causing the East German Railways to move operations on to the southern suburban track.

This solution, however, only continued for a few years, as in early September 1980 both the Ring line and the short branch to Köllnische Heide were closed as a result of a strike by employees of the S-Bahn resident in West Berlin.