See also:

Important safety notes
RACE START is only available in AMG vehicles. RACE START enables optimal acceleration from a standing start. The precondition for this is a suitable high-grip road surface. WARNING RACE ...

Making adjustments in 5 mph (Canada:

10 km/h) increments
Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...

Deactivating the HOLD function
The HOLD function is deactivated automatically if:  - you accelerate and the transmission is in position D or R.  - you shift the transmission to position P.  - you apply t ...