The line was opened in 1921. All stations on the line were served in the 1944 timetable. Weekend traffic was reintroduced in 2001. After that the RB 76 service (Minden–
Rotenburg on the
Wanne-Eickel–Hamburg railway) was used especially by travellers using the
Schönes-Wochenende ("happy weekend") ticket (an excursion ticket that can be used on local services nationwide on weekends), because it has the shortest travel times between the Ruhr area and Hamburg using local services. As a result of the reduction of the regionalisation funds, it was proposed that regional services would be discontinued in December 2007. This would have meant that the investment made a few years ago for the reopening and the enlargement of the
Petershagen-Lahde station would have gone to waste, but the abolition of local services was averted. Due to the very low demand for through traffic, the operation of through services between Minden and Rotenburg was abandoned from Mondays to Fridays. Since then the line has been served by the RE 78 (Nienburg–Bielefeld) service. With the introduction of the new service in 2007, class 644 (
Bombardier Talent) diesel multiple units were originally used; these had previously also been used on Bielefeld–Minden shuttle services. In 2009, they were replaced by
class 425 and 426 electric multiple units and occasionally supplemented by double-decker trains in the evening. Due to a lack of class 426 rolling stock, all trains were formed from class 111 electric locomotives hauling two double-decker cars of the 1994 series from February 2017 until the December 2017 timetable change. Services on the weekend, ran at two-hour intervals (compared to the approximately hourly services on working days) as the RB 76 (Minden–Rotenburg) service. This was formerly operated by
DB Regio Nord with locomotive-hauled trains. It consisted of locomotives of classes
141,
111 or
143 with double-deck or
Silberling carriages. Since the end of 2014, the
EVB has operated the services on behalf of DB Regio Nord with
class 628 diesel railcars with coupled sets (trains numbers up to 14141). The other service running on the line is operated by DB from Monday to Friday (train numbers from 14183). There were important connections in Minden to the RE 6 service to the
Cologne/Bonn Airport and in Rotenburg to the RE 4 service to Hamburg, operated by
Metronom. == Operations==