Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center.
Observe the notes in the "Changing a wheel" section.
See also:
Starting route guidance to an entry
This function is available as soon as you
have stored a destination in the destination
memory. COMAND also
stores the destination in the address book
with the complete navigable address data. ...
Storing and maintaining the current speed
You can store the current speed if you are driving faster than 20 mph (30 km/h).
Accelerate the vehicle to the desired speed.
Briefly press the cruise control lever up 1 or down 2.
Remove your ...
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary.
Rthe engine is running.
Rthe driver's door is closed or if your seat belt is fastened.
Rthe electric parking brake is released.
...