It is necessary to make an application to both study programmes with admission restriction as well as study programmes without admission restrictions. For certain study programmes you may be required to take aptitude tests with varying deadlines. Both points apply whether applying for first semester studies or for applications to higher semesters.
You have a German Abitur (German school-leaving certificate) or a German university degree and in the first semester would like:
Please use the application and status portal (in German).
Here you will find information on how to apply to a higher subject-related semester (in German), for example, if you change universities, interrupt your studies or switch from one subject to another after several semesters.