The easiest way to get to the University Campus is the FGC railways (Ferrocarrils de la Generalitat de Catalunya). The most central stations are Pl. Catalunya, Provença and Gràcia. From there, you may take any train of the S2 or S6 lines and get off at Universitat Autònoma station (35-40 minutes).
When leaving the car, face left and leave the platform following the exit signs. Walk alongside the railway tracks and across a bridge. Once on the other side, a curvy road will take you directly to the back of the faculty. (Less than 5 minutes).
View of the building entrance.