It is very common to participate in several interviews prior to becoming an employee with Volkswagen. The initial interview or screening interview will most likely be held over the phone with an HR representative. In this interview, you will be asked several questions covering your availability, salary expectations, work experience, etc.
If you happen to pass the initial screening interview, you should be invited to participate in one or several face-to-face interviews which may be held either one-to-one, in a group, or before a panel.