Abstract: A window lifter assembly is provided which comprises at least one carrier component and a guide rail fixed at the carrier component, which defines a path of adjustment for a window pane to be adjusted. At least three geometrically differently designed first, second and third fixing regions are provided at the guide rail, which in the properly connected state with a tab each engage into a cutout of an associated fixing region at the carrier component. Identically formed screws are used at the different first, second and third fixing points defined thereby, in order to fix the guide rail at the carrier component.