Originally Posted by
Flying Lawyer
If one doesn't want to understand one will not understand even if it is as simple a this: An ICE ticket is generally not valid on trams, skytrains, subways and busses.
If the ticket was bought with a Bahncard and the journey is longer than 100km, then the (ICE) ticket includes the City+ option and is thus valid on the skytrain and all other transport for that particular area (Verkehrsverbund)