This is Dahlem-Dorf Station.
You can walk to Freie Universität Berlin from the station.

This is the U3 line toward Nollendorfplatz. The Next Station is Podbielskiallee heading toward Nollendorfplatz Station.
This is the U3 line toward Krumme Lanke. The Next Station is Thielplatz heading toward Krumme Lanke Station.