Abstract: In this talk we derive the Post-Newtonian limit of a general class of symmetric teleparallel theories of gravity, where the action is a free function of the five independent quadratic contractions of the Nonmetricity tensor. By making use of the Parametrized Post-Newtonian formalism (PPN), we can restrict the taylor coefficients of the free function. Here a crucial point is the approximation of the dynamical connection. To calculate the full Post-Newtonian metric of this theory, we have to define one additional generalized potential. Therefore it is not possible to present all 10 PPN parameters without restricting the theory any further. Nevertheless we can present these parameters for a subclass of theories, where General Relativity is included.