Overview

• From Friday, Aug 29 at 22:30 to Monday, Sep 1 at 04:40, only limited S‑Bahn service will cross the core tunnel as DB carries out overhead‑line and second‑route construction.
• Line pattern: S8 runs the full Stammstrecke; S7 operates outside the tunnel on a 20/40‑minute cycle; other lines are split or shortened, including S1 terminating at Hauptbahnhof nonstop from Moosach, S4 only Geltendorf–Pasing, and S6 Tutzing–Hauptbahnhof without stops between Pasing and Hbf plus Donnersbergerbrücke–Ebersberg.
• DB advises using S1, S7, U‑Bahn links, and Regional services where faster, with real‑time planning via DB and MVV apps and station information.
• MVG will divert several bus lines for roadworks in Unterföhring and on Lindwurmstraße from Aug 22–24 with a weather contingency to shift the works to Aug 29–31; on Aug 26 the city will crane in temporary foot and cycle bridges at Pasing, causing several ten‑minute underpass closures.
• Separately, DB plans a full closure of Ulm Hauptbahnhof from Jan 13 to Feb 6, 2026 for a signal‑control upgrade, prompting local criticism as replacement service concepts are promised by October.