A device for connecting at least one window lifter arm to a two-sided displaceable window pane in a motor vehicle. The device includes a profiled guiding section adapted to be fixed to one edge of such window pane, a slider slidably mounted in the profiled guiding section and adapted to be fixed to the at least one window lifter arm, at least two stops molded in the profiled guiding section for engaging said one edge of such window pane during assembly, at least two spaced apart clamping areas molded in the profiled guiding section and adapted to contact one side of the window pane, at least two separate clamping jaws supported on the profiled guiding section, each clamping jaw being associated with an opposing different one of said at least two clamping areas and being adapted to contact the other side of the window pane, at least two sets of supporting points being formed between each of the separate clamping jaws and the opposing clamping area, and tensioning means to tension the window pane between the at least two clamping areas and the associated at least two separate clamping jaws.