On the weekend, Ludwig services, however, ran between Buch and Schöneweide, while Otto services shuttled between Schöneweide and Spindlersfeld. Until the extension of the 10-minute cycle over the weekend, trains ran through from Buch to Spindlersfeld, under the traction group name of Schöneweide. The introduction of the new timetable, however, revealed unfavourable arrival and departure times towards Spindlersfeld. The operations were therefore separated again, and the branch line was served by its own shuttles. Since the traffic on the route is fairly sparse, the use of two-carriage sets was ideal. Thus the mini-Otto services came to be operated by two Peenemünde quarter sets. At times of high patronage or if one of the two trains failed, four-carriage sets from Grünau depot were used.
