Communicate mobility for study purposes
Source: BUS Rheinland-Pfalz
If you are not a national of an EU member state, you do not necessarily need a German residence permit to study here.
As part of EU mobility, you can enter Germany with a residence permit from an EU member state for study purposes within the meaning of the Research and Studies (REST) Directive and study for a certain period of time. You do not need another residence permit for this. Exception: Ireland and Denmark
Your study stay in Germany may last up to 360 days.
The conditions for mobility are laid down throughout the EU in the Research and Studies (REST) Directive.
The host university must notify the Federal Office for Migration and Refugees (BAMF) of your stay beforehand. The BAMF will issue a certificate of entitlement to enter and stay within the framework of EU mobility.