Note: We gonna set this to an emergency vehicle, because emergency vehicles by EU don’t have a set speed limit. For Other Mercedes or other regions, better change Vmax with MB specific scanner MB SD C4 with Vediamo or DTS Monaco.
Go to Normal Diagnostics- Engineer Mode
Choose Control unit adaptations in function menu –Maximum vehicle speed limit
Now the Vmax was set at 92km/h by the factory
There is a question asking should be speed limit changed? Press yes to continue.
here explains the laws and what they should be set to by law
Confirm the maximum speed limitation as pro EU Directives
Vehicle data are being read.
Select vehicle type: Rescure vehicles, police or government vehicles
Vmax speed was set to 161km/h by the factory
Set the speed limit and test man as you wish
Now the speed limit has been changed to 161km/h.