The three BOB lines run on part of what was the Bayerischen Maximiliansbahn as a combined train set from München Hauptbahnhof via the southern ring to Holzkirchen.

The Bayerische Oberland Bahn GmbH is a member of the "Tarifverband der Bundeseigenen und Nichtbundeseigenen Eisenbahnen in Deutschland" (TBNE: Tariff Association of federally and non-federally owned railways in Germany).

[citation needed] Since the beginning of July 2004 BOB has added three Bombardier Talent Train-sets to cover rush hour service.

The vehicles used, of the type Alstom Coradia Continental, and the workshop in Chemnitz are owned by VMS, and the personnel are provided by Transdev Mitteldeutschland GmbH.

[1][2] On February 9, 2016, two Meridian trains of Bayerische Oberlandbahn GmbH, carrying around 150 passengers, collided head-on on the Mangfalltalbahn between Bad Aibling and Kolbermoor.

[citation needed] BOB connections are not only highly used during weekdays, but also on the weekend by tourist and locals planning excursions to the Bavarian Alps, with walking, bike riding and skiing being favorite activities.

Bus connections are available in Lenggries and Tegernsee to Karwendel, Achensee, Rofan and the Ski slopes on Wendelstein Sudelfeld [de], and Brauneck.