Carroccia and his colleagues also determine the labour time for later repair work on the basis of REFA guidelines. Labour time serves as criterion for GM/Opel workshops for cal- culating warranties. For this, individual parts in the vehicles are replaced under real-time conditions to determine the labour time required. Here too, varying service strategies play a decisive role which significantly influences the labour time of a given region.
The workshop and customer literature prepared includes service and maintenance manuals, checklists, special brochures, labour time determinations and, shortly before series production, operating manuals (glove box literature). In addition to the English text descriptions, the team is also responsible for creating images and graphics, layout and typesetting, as well as for verifying that the workshop and customer literature conforms to the respective vehicle.
The service literature is also based on DMU data, which are used to generate the important graphics. Here too, one can see a major difference to the early years when, instead of creating graphics digitally, vehicles were still photographed and the photos subsequently edited. In the past few years, approximately 11,000 graphics have been created for service literature – predominately on the basis of DMU data. Ultimately, approximately 2,500 service operations are described per vehicle on the basis of the DMU data in combination with subsequent work on the different prototypes. These vary in accordance with the many technical variations among the six different GM regions.