After she was discovered as a secretary for modeling she became famous in her role as Gaby Klimbim (1973-1979) in Michael Pfleghar's comedy show Klimbim [de] in the 1970s.

[1][2] She made the transition from soft porn actress to comedian.

[2] At the time of her death, she was living in an apartment in the Munich district of Schwabing with her dog, a little Yorkshire terrier named Eliza Doolittle.

[3] She died from an intestinal obstruction on 22 December 2023, at the age of 76.

[4] Steeger was buried on 17 January in the Stahnsdorfer Südwestkirchhof near Berlin, according to her wish, under a tree.