With the diagnostic software ESI[tronic] 2.0 Online workshops not only have at hand fault search instructions, ECU and sensor diagnosis, information and instructions for service and repair, but also the respective values for the placement of the calibration targets. The software displays the height where targets need to be attached to the calibration device bay, as well as the distance towards the vehicle. Targets can be attached easily thanks to colored vehicle specific retainers at predefined positions which shortens setup time. The calibration targets themselves can easily and quickly be mounted on the retainers.