Page 130 of 416

130 Controls in detailControl system
Operate the CD player
Turn on the radio and select the CD 
player. Refer to separate operating in-
structions.
Press buttonè orÿ repeatedly 
until the settings for the CD currently 
being played are shown in the display.
1Current track
2Current CD (for CD changer)
Press buttonk orj repeatedly 
until the desired track is selected.
NAVI menu
The 
NAVI
 menu contains the functions 
needed to operate your navigation system.
Press buttonè orÿ repeatedly 
until you see the message 
NAVI
 in the 
display.
If the navigation system is off, the mes-
sage 
NAVI OFF
 is shown in the display. 
If the navigation system is on, the mes-
sage 
NAVI READY
 is shown in the dis-
play.
Please refer to the COMAND manual for in-
structions on how to activate the route 
guidance system*.
iAdditional optional satellite radio 
equipment and a subscription to satel-
lite radio service provider are required 
for satellite radio operation. Contact an 
authorized Mercedes-Benz Light Truck 
Center for details and availability for 
your vehicle.
For more information, refer to separate 
COMAND operating instructions.iSatellite radio service may be unavail-
able or interrupted from time to time 
for a variety of reasons, such as envi-
ronmental or topographic conditions 
and other things beyond the service 
provider’s or our control. Service might 
also not be available in certain places 
(e.g. in tunnels, parking garages, or 
within or next to buildings) or near 
other technologies.
iTo select a CD from the magazine, 
press a number on the COMAND sys-
tem key pad located in the center dash-
board. 
     
        
        Page 141 of 416

141 Controls in detail
Control system
Vehicle submenu
Access the 
VEHICLE
 submenu via the 
SETINGS
 menu. Use the 
VEHICLE
 submenu 
to make general vehicle settings. The fol-
lowing functions are available:
Setting station selection mode
Use the 
PRESS BUTTON IN AUDIO MODE 
function to select the manual or memory 
station selection mode for the radio.
Move the selection marker with 
theæ orç button to the VEHICLE
 submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play: 
PRESS BUTTON IN AUDIO MODE
.
The selection marker is on the current 
setting.
Pressæ orç to select the 
desired station selection mode. You 
can select:
STATION SEARCH
MEMORY
 selects next stored stationSetting automatic locking
Use this function to activate or deactivate 
the automatic central locking. With the au-
tomatic central locking system activated, 
the vehicle is centrally locked at vehicle 
speeds of approximately 9 mph 
(15 km/h).
Move the selection marker with 
theæ orç button to the VEHICLE
 submenu.
Press buttonj ork repeatedly 
until you see this message in the dis-
play: 
AUTOMATIC DOOR LOCK
.
The selection marker is on the current 
setting.
Pressæ orç to switch function ON or 
OFF
.
Function
Page
Set station selection mode 
(radio)
141
Set automatic locking
141 
     
        
        Page 204 of 416

204 Controls in detailUseful featuresUpgrade Signals
The Tele Aid system processes calls using 
the following priority.
Automatic emergency – First priority
Manual emergency – Second priority
Roadside Assistance – Third priority
Information – Fourth priority
Should a higher priority call be initiated 
while you are connected, an upgrade (al-
ternating) tone will be heard and the ap-
propriate indicator lamp will flash. If 
certain information such as vehicle identi-
fication number or customer information is 
not available, the operator may need to re-
transmit.
During this time you will hear a beep and 
voice contact will be interrupted. Voice 
contact will resume once the retransmis-
sion is completed. Once a call is conclud-
ed, a beep will be heard and the 
appropriate indicator lamp will stop flash-
ing. The COMAND system operation will 
resume.
!If the indicator lamp continues to flash 
or the system does not reset, contact 
the Response Center at 
1-800-756-9018 (in the USA) or 
1-888-923-8367 (in Canada), or 
Mercedes-Benz Customer Assistance 
at 1-800-FOR-MERCedes 
(1-800-367-6372) in the USA or 
Customer Service at 1-800-387-0100 
in Canada.iThe indicator lamp in the respective 
button flashes until the call is conclud-
ed. Calls can only be terminated by a 
Response Center or Customer 
Assistance Center representative, ex-
cept Roadside Assistance and 
Information calls, which can also be 
terminated by pressing buttont on 
the multifunction steering wheel.
iWhen a Tele Aid call has been initiated, 
the COMAND system audio is muted 
and the selected mode (radio or CD) 
pauses. The optional cellular phone (if 
installed) switches off. If you must use 
this phone, the vehicle must be parked. 
Disconnect the coiled cord and place 
the call. The navigation system (if en-
gaged) will continue to run. The display 
in the instrument cluster is available for 
use and spoken commands are only 
available by pressing the RPT button on 
the COMAND unit. A pop-up window 
will appear in the COMAND display to 
indicate that a Tele Aid call is in 
progress.