You can probably try another dealership to see if they are willing to remove those running boards and order you a rocker panel.
As for the ECO Stop, there doesn't seem to be any way to turn if off permanently. The default ECO setting is essential for EPA credits and that's what Mercedes wants.
As for the ECO Stop, there doesn't seem to be any way to turn if off permanently. The default ECO setting is essential for EPA credits and that's what Mercedes wants.