A device for fastening and electrical contacting of a vehicle window pane with an integrated electrical functional element. The device includes a pane adapter fixed on the window pane; a pane holder that couples the pane adapter with a vehicle body; a pane-side plug that establishes electrical contact with the functional element when the window pane is assembled; and a pane-side coupling shoe for mounting the pane-side plug on the window pane. The device further includes a mating plug that couples with the pane-side plug to provide electrical contact of the functional element to a control unit. The pane adapter, the pane-side coupling shoe, the pane holder, and a plug holder that supports the mating plug, are kinematically coupled so that during assembly of the window pane using the pane adapter on the pane holder, the pane-side plug is connected to the mating plug.