TUM does not charge any tuition fees for a doctorate. The German state bears all costs of doctoral training. Nevertheless, you will need to cover your daily expenses. There are several ways of financing your living expenses during a doctorate.
Employment as an academic assistant is the traditional way to finance a doctorate, and offers extensive professional practice in both research and teaching. [more]
A scholarship lets you finance your living expenses, and often also provides an accompanying ideational support program. [more]