  Ferromagnetic Co$_2$MnGa has recently attracted significant attention due to
effects related to non-trivial topology of its band structure, however a
systematic study of canonical magneto-galvanic transport effects is missing.
Focusing on high quality thin films, here we systematically measure anisotropic
magnetoresistance (AMR) and its thermoelectric counterpart (AMTP). We model the
AMR data by free energy minimisation within the Stoner-Wohlfarth formalism and
conclude that both crystalline and non-crystalline components of this
magneto-transport phenomenon are present in Co$_2$MnGa. Unlike the AMR which is
small in relative terms, the AMTP is large due to a change of sign of the
Seebeck coefficient as a function of temperature. This fact is discussed in the
context of the Mott rule and further analysis of AMTP components is presented.
