A motor vehicle sliding roof system for shifting a cover from a closed position to an open position has at least one guide rail, a carriage that is displaceable in the guide rail, a lifting mechanism that controls a displacement of the front edge of the cover, a raising mechanism that controls a displacement of the rear edge of the cover, and a transfer mechanism adapted to transfer a displacement of the carriage to the raising mechanism. The lifting mechanism, the raising mechanism and the transfer mechanism have a modular structure.