Sales advice – Automarkt Essen?

In the course of a new purchase we have an old Micra (K11 Bj.1998) which should get an owner as quickly as possible. Now my father has planned to sell the car tomorrow on the car market in Essen (Autokino), but would also like to reach an acceptable price. Although I have read a lot about it on the Internet, the experiences are quite old, I want to keep my father from unnecessary costs (and loss of time), the n what I have read there true yet sobering!! Does anyone know this market/similar markets? Can one reach a real price there as a private seller?