Sliding door for motor vehicles and methods of assembly

The invention relates to a sliding door for a motor vehicle comprising a door outer panel (3), an inner door panel (4) and a door inner lining (50) has at least an opening provided on a vehicle body guide rail is supported on and along the between an open position and a closed position a vehicle longitudinal direction (x) is displaceable. The sliding door comprises a cable guide assembly (20, 25) for receiving and guiding electrical cables that connect provided in or on the vehicle body first electric elements on the sliding door (1) provided for the second electrical elements, wherein the cable guide assembly while moving the sliding door at least in a displacement plane containing the vehicle longitudinal direction (x) is movable and wherein a guide channel (14, 16-18) for guiding the cable guide assembly (20, 25) is provided during displacement of the sliding door (1). According to the invention the sliding door is characterized in that guide surfaces (16-18) of the guide channel (14) at least in sections on the inner door panel (4) and / or connected to a with the inner door panel (4) door module carrier (10) and / or (at the door inner panel 50 are formed) or integrated.