7 June 1945 and two weeks later to Hilsbach. The steam locomotives and passenger carriages on the line, which were up to fifty years old, were gradually replaced by diesel haulage from the mid-1950s. Thus, in 1955, DEBG operated a diesel locomotive and, in 1956, six diesel railcar formerly owned by Deutsche Bundesbahn and built in 1936 and 1937. However, the DEBG applied on 7 July 1958 to close all of its tracks in southern Germany. This was resisted by the state of Baden-Württemberg, in particular. There was little passenger and freight traffic in the postwar years, especially between Tiefenbach and Hilsbach. On 1 October 1960, therefore passenger services were discontinued between Tiefenbach and Hilsbach and twelve days later, following a derailment, freight traffic was abandoned. The weak track meant that continued operations no longer made sense and in subsequent years the tracks were dismantled on the section. The years under the SWEG (1963–1994) DEBG transferred, with effect from 1 May 1963, both lines to the Südwestdeutsche Verkehrs-Aktiengesellschaft (Southwest German Railway Company, SWEG), which had been founded on 10 December 1962 by the state of Baden-Württemberg to preserve a number of private lines before they were closed. The SWEG sought to modernise the line. Thus, the remaining steam trains were replaced by diesel locomotives after the takeover. They also introduced improvements to the line, which also shortened the travel time significantly. As a result, a trip from Bruchsal to Tiefenbach took only 39 minutes compared to 48 minutes previously. In 1968, Odenheim Ost station was opened to the east of Odenheim. Other additional stations that were opened on the Katzbach line in the following years were Ubstadt Nord (from the mid-1990s: Ubstadt Uhlandstraße), mainly serving the education centre in Ubstadt, Zeutern Ost and Odenheim Weberei (from 1977: Odenheim West). On 31 January 1975, the eastern section from Odenheim Ost to Tiefenbach was closed. Odenheim Ost station, which had only been established in 1968, thus became the new terminus of the line. Two platforms were built with at the opening of the station, which were on opposite sides of a level crossing, so the outer platform towards Tiefenbach was abandoned and the remaining platform was provided with a buffer. From October 1981 services on the Katzbach line were strengthened by the introduction of class NE 81 diesel multiple units, which had been built by Waggon Union. However, the line was more