Accepting a call
If someone calls you when you are in the Tel menu, a display message appears in the multifunction display, for example:
Press the 
button on the steering
wheel to accept an incoming call.
If you are not in the Tel menu, you can still accept a call.
See also:
Fuse box in the engine compartment
► Open the hood.
Illustrated: GL 450 (GL 350 BlueTEC, GL 550 are
similar)
► Remove any existing moisture from the
fuse box using a dry cloth.
► To open: open clamps 2.
` ...
Roadside Assistance button
•► Press and hold Roadside Assistance
button 1 for more than two seconds.
This initiates a call to the Mercedes-Benz
Customer Assistance Center. The indicator
lamp in Roadside Assistanc ...
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 ...