In 1987, "Liebe Pur," his first solo album, was released on the record label Amiga. After the Puhdys originally ended in 1989, he founded a lighting company and was co-owner of a nightclub. From 1992 he played again wirh the Puhdys. After the Puhdys ended, Dieter Hertrampf became dedicated to his solo projects "Ich bereue nichts", "Quaster & Friends" and "Quaster unplugged", with which he has traveled since 2016. He participates as a guest in various projects, such as "Bonfire and Friends" and "Ostrock meets Classic". Dieter Hertrampf is married to Liane Hertrampf. Together they have a daughter. Hertrampf's son Sven is a member of the drum band "Stamping Feet". His son who is related to him via adoption, Carsten Mohren, was a musician with Rockhaus.