Page 114 of 376

114 Controls in detailControl system
Standard display menu
You can select the functions in the stan-
dard display menu with buttonk 
orj.
The following functions are available:
Display digital speedometer
Press buttonj twice.
The current vehicle speed is shown in 
the multifunction display.
AUDIO menu
The functions in the 
AUDIO
 menu operate 
the audio equipment which you currently 
have turned on.
If no audio equipment is currently turned 
on, the message 
AUDIO OFF
 is shown in the 
display.
The following functions are available:
iThe headings used in the menus table 
are designed to facilitate navigation 
within the system and are not neces-
sarily identical to those shown in the 
control system displays.
The first function displayed in each 
menu will automatically show you 
which part of the system you are in.
Function
Page
Call up coolant temperature dis-
play
106
Call up digital speedometer
114
Call up FSS
249
Check engine oil level
238
Function
Page
Select radio station
115
Select satellite radio station*
115
Operate CD player*
116
Operate cassette player
116 
     
        
        Page 117 of 376

117 Controls in detail
Control system
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 switched off, 
the message 
NAVI OFF
 is shown in the 
display. 
If the navigation system is on, the mes-
sage 
NAVI ACTIVE
 is shown in the dis-
play.
Please refer to the COMAND* manual for 
instructions on how to activate the route 
guidance system*.
Malfunction memory menu
Use the malfunction memory menu to scan 
malfunction and warning messages that 
may be stored in the system. What infor-
mation is shown in the display depends on 
whether malfunctions have actually oc-
curred.
Press buttonè orÿ repeatedly 
until you see the malfunction message 
memory in the display.
No malfunction messages
If no malfunctions have occurred, the mes-
sage in the display is: 
NO MALFUNCTION
iTo select the reverse side of the tape, 
press button below track number on 
the audio system display, or enter re-
quest on the COMAND* system locat-
ed in the center dashboard.
Warning!
G
Malfunction and warning messages are only 
indicated for certain systems and are inten-
tionally not very detailed. The malfunction 
and warning messages are simply a remind-
er with respect to the operation of certain 
systems and do not replace the owner’s 
and/or driver’s responsibility to maintain 
the vehicle’s operating safety by having all 
required maintenance and safety checks 
performed on the vehicle and by bringing 
the vehicle to an authorized Mercedes-Benz 
Center to address the malfunction and 
warning messages (
page 264). 
     
        
        Page 213 of 376

213 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle), 
and the reserve key is not handy:
Contact the Mercedes-Benz Response 
Center at 1-800-756-9018 (in the USA) 
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you 
completed the subscriber agreement.
Then return to your vehicle and pull the 
trunk lid recessed handle for minimum 
of 20 seconds until the “SOS” button is 
flashing.
The message 
EMERGENCY CALL – 
CALL CONNECTED appears in the multi-
function display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password 
sent to you shortly after the completion of 
your acquaintance call.The Response Center will then unlock your 
vehicle with the remote door unlocking 
feature.
iWhen a Tele Aid call has been initiated, 
the audio system or the COMAND* sys-
tem audio is muted and the selected 
mode (radio, tape or CD) pauses. The 
optional cellular phone (if installed) 
switches off. If you must use this 
phone, the vehicle must be parked. Dis-
connect the coiled cord and place the 
call. The COMAND* navigation system 
(if engaged) will continue to run. The 
display in the instrument cluster is 
available for use and spoken com-
mands 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.
iThe remote door unlock feature is avail-
able if the relevant cellular phone net-
work is available.
The “SOS” button will flash and the 
message 
EMERGENCY CALL – 
CALL CONNECTED
 will appear in the mul-
tifunction display to indicate receipt of 
the door unlock command.
Once the vehicle is unlocked, a Re-
sponse Center specialist will attempt 
to establish voice contact with the ve-
hicle occupants.
If the trunk lid recessed handle was 
pulled for more than 20 seconds be-
fore door unlock authorization was re-
ceived by the Response Center, you 
must wait 15 minutes before pulling 
the trunk lid recessed handle again. 
     
        
        Page 343 of 376

343 Technical terms
GPS*
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying 
geographic location information to and 
from vehicles equipped with special re-
ceivers. Employs CD digital maps for 
navigation.
Instrument cluster
The displays and indicator/warning 
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer 
and fuel gauge.
Kickdown
Depressing the accelerator past the 
point of resistance shifts the transmis-
sion down to the lowest possible gear. 
This very quickly accelerates the vehi-
cle and should not be used for normal 
acceleration needs.
Lock button
Button on the door which indicates 
whether the door is locked or un-
locked. Pushing the lock button down 
on an individual door from inside will 
lock that door.Memory function*
Used to store three individual seat, 
steering wheel and mirror positions for 
each SmartKey.
Menu
The control system displays are ar-
ranged in menus. Each menu contains 
a number of commands for particular 
systems. In the Audio menu, for exam-
ple, you will find the commands 
Select 
radio station 
or Operate CD player
. 
Using commands, you can directly 
change the settings for your vehicle.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline 
as determined by a standardized meth-
od. It is an indication of a gasoline's 
ability to resist undesired detonation 
(knocking). The average of both the 
MON (Motor Octane Number) and 
->RON (Research Octane Number) is 
posted at the pump, also known as AN-
TI-KNOCK INDEX.Multifunction display
Display field in the instrument cluster 
used to present information provided 
by the control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Overspeed range
Engine speeds within the red marking 
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not 
covered by the Mercedes-Benz Limited 
Warranty. 
     
        
        Page 362 of 376

362 Index
Washer fluid 283
Multifunction steering wheel   24, 110, 343
Buttons 110
N
Navigation system
Operating 117
See separate COMAND* operating in-
structions
Night security illumination 100
Setting 127
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 41
Infant and child restraint systems 65
LATCH child seat mounts 70
Seat belts 41, 60
Odometer, main 23Oil
Adding 239
Consumption 237
Dipstick 237
Filler neck 240
Viscosity 342
Oil level
Checking 235
One-touch gearshifting 140
Canceling gear range limit 140
Downshifting 140
Upshifting 140
Opening
Ashtray 203
Doors from the inside 85
Fuel filler flap 233
Fuel filler flap manually 291
Glove box 200
Hood 236
power window with SmartKey 188
Roller sunblind for the 
sliding/pop-up roof 189Side windows 187
Sliding/pop-up roof 190, 292
Sliding/pop-up roof in an 
emergency 292
Sliding/pop-up roof with 
SmartKey 192
Trunk 85
Windows 186, 187
Windows with SmartKey 188
Operating
Audio system 159
Cassette player 116
CD player 116
COMAND* see separate operating in-
structions
Navigation system 117
Radio 115
Radio transmitters 230
Telephone* 134, 159, 179
Operating safety
Audio system 159
Operator’s Manual 10
Ornamental moldings 253