Behind the scenes of fuel cell mobility - Mercedes-Benz Group Media - Assembly line for the drive unit of the Mercedes-Benz GLC F-CELL in Kirchheim-Nabern. The assembly system is equipped with an intelligent control system. Visualisation, screw system and fitter together form an interactive unit. The fitter is given information about process steps, installation details and assembly instructions in visual form; the tool control system sets the required parameters; the data recorded are immediately transferred to the quality control chart.