New fire protection and construction work: S-Bahn in Offenbach affected!
Deutsche Bahn is modernizing fire protection in Offenbach's S-Bahn stations from July 4th to August 18th, 2025. Information on replacement traffic.

New fire protection and construction work: S-Bahn in Offenbach affected!
In a comprehensive initiative to improve safety standards, Deutsche Bahn is currently modernizing the fire protection devices in several S-Bahn stations around Offenbach. The affected stations are Kaiserlei, Ledermuseum and Marktplatz, while the Frankfurt-Mühlberg station was also included in the renovation program. Loud Frankfurt Live The work is scheduled to begin on July 4th at 9:00 p.m. and last until August 18th at 5:00 a.m.
This extensive modernization is part of a larger plan involving investments of around 180 million euros. The installation of a high-pressure water mist system for effective fire fighting is planned, as is the replacement of all safety lighting and network units in the affected stations. In Frankfurt-Mühlberg in particular, a steel framework is installed to divert smoke in the event of a fire.
Timetable effects and replacement traffic
However, this also has consequences for passengers: During construction work, the S-Bahn trains between Frankfurt Ostendstraße and Offenbach Ost cannot travel through the tunnel. In the meantime, replacement services will be put in place, including regional trains, trams and municipal buses, to maintain mobility. The S-Bahn stations Frankfurt Mühlberg, Kaiserlei, Ledermuseum and Marktplatz will remain closed during the construction work, but access to the trains to Offenbach Ost is possible at any time.
Lines S1, S2, S8 and S9 see adjustments, while S3 to S7 remain unchanged. The following special replacement bus routes will be offered during this time:
- S1E: Offenbach Ost – Konstablerwache
- S2E: Offenbach Hauptbahnhof – Konstablerwache
- S8E: Offenbach Ost – Frankfurt Flughafen
- S9E: Offenbach Ost – Frankfurt Süd
Preparations are underway
Preparations for the construction work began on April 28, 2025 and will be carried out during the night. Not only rails, but also several switches in Offenbach Ost station will be replaced. Around 15 kilometers of rails will be replaced along the entire tunnel route, which will significantly increase the quality and safety of S-Bahn traffic.
Overall, this initiative is part of Deutsche Bahn's S3 renovation program, which was introduced with the aim of modernizing the infrastructure nationwide and improving operational quality. The necessity of these measures has been underlined by the crises of recent years, which have negatively influenced the achievement of the ambitious Strong Rail goals. German railway reports that these programs work toward significantly improved performance and customer experience.
Looking to the future, those responsible hope that such extensive modernization measures will help stabilize the infrastructure and secure the climate goals of transport policy. Passengers will be fully informed about all changes, including through posters with QR codes and notices at the affected stations.
Overall, it remains to be seen how these modernizations will affect the everyday life of commuters in and around Offenbach. However, one thing is certain: These measures will definitely raise safety standards.