Is the system broken or do you always drive with your foot to the floor.
MB suggests that to run an ASR car on a dyno that one should unplug the hydraulic actuator. It is not suggested to deactivate the controller (as a fuse might), as the controller needs to process certain signals that the engine management system needs. Once the car is off the dyno, it is then stated that one must go back and erase all the codes doing such will cause.
Bosch Master, ASE Master, L1
33 years MB technician