You can reserve a seat on any long-distance train. This costs EUR 4.90 in second class and EUR 5.90 in first class.

A free reservation is included when booking a first class ticket on the following trains:

• All long-distance trains within Germany.
• Long-distance cross-border trains, up to the station where you get off or change trains abroad.

If you change trains abroad, you will pay EUR 4.90 for second class and EUR 5.90 for first class seat reservations on subsequent trains.
 

Trains requiring seat reservations:
For trains requiring reservations, you will receive your seat reservation free of charge when you book your ticket. If you buy the reservation later, you will pay EUR 4.90 for the seat in second class and EUR 5.90 in first class.