The S3 is a service on the

Munich S-Bahn The Munich S-Bahn (german: S-Bahn München) is an electric rail transit system in Munich, Germany. "S-Bahn" is the German abbreviation for ''Stadtschnellbahn'' (literally, "urban rapid rail"), and the Munich S-Bahn exhibits characteristics of bot ...

network. It is operated by

DB Regio DB Regio AG is a subsidiary of Deutsche Bahn which operates regional and commuter train services in Germany. DB Regio AG, headquartered in Frankfurt am Main. It is a 100% subsidiary of the Deutsche Bahn Group and there part of the DB Regio ...

Bayern. It runs from Mammendorf station to Holzkirchen station via

Pasing Pasing is a district in the city of Munich, Germany, and part of the borough Pasing-Obermenzing. Overview Pasing is located west of the Munich city centre, at the north-western edge of the city's innermost traffic zone. The district is mainly res ...

, central Munich, Munich East,

Giesing Giesing (formerly Kyesinga) was a Bavarian town founded in 790 (older than Munich). The town was incorporated by the city of Munich in October 1854. Since then, it is a borough of the metropolis. Giesing is located south-east of Munich and has a ...

and Deisenhofen. Trains reverse in

Munich East station Munich East station (german: Bahnhof München Ost, also called ''München Ostbahnhof'' in regional services) is a railway station in Munich, the state capital of Bavaria, Germany. It opened as Haidhausen station in 1871 on the new Munich–Müh ...

and, in order for S-Bahn services from St Martinstraße to be inserted into the S-Bahn line while simultaneously reversing to run into the S-Bahn tunnel under central Munich or vice versa, the line between Munich East station and the flying junction between München-Giesing and Fasangarten stations is one of the few in Germany that has traffic running on the left. The service is operated at 20-minute intervals between Maisach and Deisenhofen. Two out of three trains an hour continue from Maisach to Mammendorf and from Deisenhofen to Holzkirchen, so that the gap between trains alternates between 20 and 40 minutes. It is operated using class 423 four-car electrical multiple units, usually as two coupled sets. In the evenings and on Sundays they generally run as single sets. The service uses several railway lines built at various times: *from Mammendorf to Pasing over the

Munich–Augsburg railway The Munich–Augsburg line connects Munich and Augsburg in the German state of Bavaria. It was built by the Munich-Augsburg Railway Company and opened in 1840. It was nationalised in 1846 and extended to Ulm in 1854. The line between Augsburg an ...

, opened by the

Munich–Augsburg Railway Company The Munich–Augsburg Railway Company (''München-Augsburger Eisenbahn-Gesellschaft''), the second private railway company in Bavaria, built the Munich–Augsburg line between 1838 and 1840. It was nationalised in 1846 and became part of the Royal ...

from Munich to Lochhausen on 1 September 1839, from Lochhausen to Olching on 27 October 1839, from Olching to Maisach on 7 December 1839 and from Maisach to Mammendorf on 4 October 1840 *from Pasing to the approaches to

Munich Central Station Munich ( ; german: München ; bar, Minga ) is the capital and most populous city of the German state of Bavaria. With a population of 1,558,395 inhabitants as of 31 July 2020, it is the third-largest city in Germany, after Berlin and Ha ...

(''Hauptbahnhof'') over a section of the S-Bahn trunk line laid parallel to the Munich–Augsburg railway *the underground section of the S-Bahn trunk line from the approaches to Munich Central Station to

, opened on 1 May 1971 *from Munich East station to Deisenhofen on the

Munich East–Deisenhofen railway The Munich East–Deisenhofen railway is a continuously-electrified, double-track, railway in the German state of Bavaria. It connects Munich East station with Deisenhofen and was opened on 10 October 1898. Today the line is used by Munich S-Bah ...

, opened by the

Royal Bavarian State Railways The Royal Bavarian State Railways (''Königliche Bayerische Staats-Eisenbahnen'' or ''K.Bay.Sts.B.'') was the state railway company for the Kingdom of Bavaria. It was founded in 1844. The organisation grew into the second largest of the German ...

on 10 October 1898 and electrified in March 1971. *from Deisenhofen to Holzkirchen over the

Munich–Holzkirchen railway The Munich–Holzkirchen railway is a continuously-electrified, double-track, railway in the German state of Bavaria. It runs from Munich to Holzkirchen via Deisenhofen. History The Munich–Holzkirchen line was built as a part of the Bavaria ...

, opened on 31 October 1857 and electrified in 1968. The S3 was introduced on 28 May 1972 and ran between Mammendorf (then called Nannhofen) and

Ismaning Ismaning is a municipality in Bavaria, Germany, located near Munich. Geography In 2016 it had 16,770 inhabitants. The town is located about seven kilometers northeast of Munich on the right high bank of the Isar River that flows into the Danube ...

. At the same the S2 began operating between Petershausen and Deisenhofen. This service was extended to Holzkirchen in 1975. Since December 2009 the S3 runs between Mammendorf and Holzkirchen.

Notes

{{Munich transport network Munich S-Bahn lines 1972 establishments in Germany