From 1933, the narrow-gauge railway started from Mundenheim as the section to Ludwigshafen had been closed. A roundhouse and a servicing pit were built in the track triangle between the passenger and freight tracks in front of the entrance building. During the dissolution of the railway division of Ludwigshafen on 1 April 1937, it was transferred to the railway division of Mainz. In 1955, the narrow-gauge line was closed to Meckenheim. In 1970, the ticket office was closed. On 1 August 1971, the station came under the jurisdiction of the railway division of Karlsruhe with the dissolution of the railway division of Mainz. The Mannheim–Saarbrücken railway to Kaiserslautern was integrated into the network of the Rhine-Neckar S-Bahn in 2003. The S-Bahn was opened on 14 December 2003 and the station has been integrated in the network since then. The provision of access for the disabled at the station began after several delays, however, only in May 2008. Since decisions on had not yet been finalised on the station’s infrastructure, a temporary platform was built made of wood planks. After the barrier-free conversion of the island platform between tracks 2 and 4, the "house" platform on track 1 (next to the entrance building) was abandoned for passenger operations and access to the track was blocked off. Mundenheim station is now administered as only a station part ("Bahnhofsteil") of Ludwigshafen Hauptbahnhof. There was a loading track on the eastern side and on the western side to the south of the entrance building there was a freight shed that could be reached both from the standard gauge and narrow gauge tracks. To the south of the freight shed there were tracks for transferring loads between standard gauge and narrow gauge. To the south, there was a connecting line to the "Süddeutschen Benzin" oil refinery. To the east, a stretch of track runs to the Rhine and BASF.