Abstract: A method for testing the dimensional accuracy of transportable positioning devices for the production of a motor vehicle. The method includes providing locaters on positioning devices so that each body component of the motor vehicle is accurately geometrically positioned on a respective one of the positioning devices. The method also includes moving, in a motor vehicle production cycle, the positioning devices with the respective body component positioned thereon to different workstations. The method further includes measuring, by a control unit during the motor vehicle production cycle in the workstations and/or in an inline measuring station for an acquisition of measured values in the motor vehicle production cycle, predefined measuring points on each body component positioned on the positioning device. The method additionally includes evaluating, by the control unit, the predefined measuring points to determine a dimensional accuracy of the transportable positioning device.