Page 135 of 434

134 Controls in detailControl system
Operate the CD player
Turn on the radio and select the CD 
player. Refer to the separate operating 
instructions.
Press button è or ÿ repeatedly 
until the settings for the CD currently 
being played are shown in the right dis-
play field.
1Current track
2Current CD (for CD changer)
Press button k or j repeatedly 
until the desired track is selected.
NAVI menu
The 
NAVI
 menu contains the functions 
needed to operate your navigation system. 
Press button è or ÿ repeatedly 
until you see the message 
NAVI
 in the 
left display.
The message shown in the right display 
field depends on the status of the naviga-
tion system:
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.
iFeature description is based on prelim-
inary information available at time of 
printing.
Additional optional satellite radio 
equipment and a subscription to satel-
lite radio service provider are required 
for satellite radio operation. At time of 
printing, no date for the availability of 
optional equipment required for satel-
lite radio operation had been set. Con-
tact an authorized Mercedes-Benz 
Center for details and availability for 
your vehicle.
For more information, refer to separate 
COMAND operating instructions. 
     
        
        Page 217 of 434
216 Controls in detailUseful featuresOpening storage tray
Press button1 and lift up the armrest.
Opening storage compartment
Press button2 and lift the armrest.
Locking the storage compartments
The storage compartments are centrally 
locked when you lock the vehicle from the 
outside.
You can also lock the storage compart-
ments separately, see “Locking the stor-
age compartments separately” 
(
page 216).Rear storage compartments
The CD changer is located in the left stor-
age compartment.
For instructions on the CD changer, see 
separate COMAND Operator’s Manual.
1Release button
2Lid
Press release button 1.
The lid opens upwards.Locking the storage compartments 
separately
You can lock the storage compartments 
separately, e.g. when the vehicle is in the 
shop for service. 
1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of SmartKey 
housing (
page 325). 
     
        
        Page 399 of 434

398 Technical termsCAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or 
windshield wiping depending on vehi-
cle settings and/or ambient condi-
tions.
Cockpit
All instruments, switches, buttons and 
indicator/warning lamps in the passen-
ger compartment needed for vehicle 
operation and monitoring.
Collapsible tire
An especially compact spare tire that 
must be inflated with a provided air 
pump before using. It should only be 
used to bring the vehicle to the nearest 
service station.
COMAND
(Co
ckpit Man
agement and 
D
ata System)
Information and operating center for 
vehicle sound and communications 
systems, including the radio, CD changer and navigation system, as well 
as other optional equipment (e.g. tele-
phone).
Control system
The control system is used to call up 
vehicle information and to change 
component settings. Information and 
messages appear in the multifunction 
display. The driver uses the buttons on 
the multifunction steering wheel to 
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed 
set by the driver.
Distronic*
A driving convenience cruise control 
system which helps the driver maintain 
a pre-selected speed:
If there is no vehicle directly ahead, 
the system operates in the same 
way as conventional cruise control.
If a slower moving vehicle is ahead, 
Distronic* will reduce your vehicle 
speed to the extent permitted by re-
duced throttle and up to 20% brak-
ing power to maintain the preset 
minimum following distance.
DTR
(->Distr
onic*)
Engine number
The number set by the manufacturer 
and placed on the cylinder block to 
uniquely identify each engine pro-
duced.
ESP
(E
lectronic S
tability P
rogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency Tensioning D
evice)
Device which deploys in certain frontal 
and rear collisions exceeding the sys-
tem's threshold to tighten the seat 
belts. 
->SRS