Page 76 of 705

75 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey: Remove the
SmartKey from the starter switch.
With the KEYLESS-GO*: Turn off the
engine (
page 317) and open the driv-
er’s door.
Deactivating
Switch on the ignition (
page 315).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:
a door
the trunk
the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when
the vehicle is raised
the vehicle is opened with the
mechanical key
a door is opened from the inside
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(
page 76).1Indicator lamp
Arming: Lock your vehicle with the
SmartKey or KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the alarm system is ac-
tivated. The indicator lamp1 flashes
to indicate that the alarm system is
armed.
i
Starting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the ve-
hicle’s battery is charged), the system is not op-
erational. Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 462) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary mobile phone, power supply and GPS
coverage are available.
Page 77 of 705

76 Safety and SecurityAnti-theft systems
Disarming: Unlock your vehicle with
the SmartKey or KEYLESS-GO*.
The turn signal lamps flash once to in-
dicate that the alarm system is dis-
armed.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(page 76).
Arming: Lock your vehicle with the
SmartKey or KEYLESS-GO*.
The tow-away alarm is automatically
armed after about 30 seconds.
Disarming: Unlock your vehicle with
the SmartKey or KEYLESS-GO*.
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train. To switch off the tow-away alarm, see
“Switching on/of the tow-away alarm”
(
page 228).
Canceling the alarm
To cancel the alarm, do one of the follow-
ing:
Insert the SmartKey in the starter
switch.
Press the Œ or ‹ button on the
SmartKey.
In vehicles with KEYLESS-GO*:
Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft. (1 m) of the vehicle.
Press the KEYLESS-GO start/stop but-
ton (
page 317).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
i
If the turn signal lamps does not flash three
times one of the following elements may not be
properly closed:
a door
the trunk
Close the respective element and lock the vehi-
cle again.
i
The alarm system will rearm automatically
again after approximately 40 seconds if no door
was opened.
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 462) provided Tele Aid service was sub-
scribed to and properly activated and that neces-
sary mobile phone, power supply and GPS
coverage are available.
i
When you unlock your vehicle, the tow-away
protection disarms automatically.
The tow-away alarm remains disarmed until you
lock your vehicle again.
Page 85 of 705
84 Control systemsCOMAND introductionOperating COMAND
Menu overview
The illustration below shows the structure
of the main menus and their main menus.Each main menu has a main menu. Each
menu item in the main menu in turn has
several submenu items.
Navi
Page
Audio
Page
Telephone*
Page
Vehicle
Page
Commands/menusMap Display
150
FM/AM Radio
93
Telephone*
115
Exterior Lighting Delayed Switch-off
220
Mode
152
Sat Radio*
(USA only)
98
Address Book*
202
Locator Lighting
221
CD
104
Telephone OFF*
116
Exterior Mirror Convenience Settings
222
DVD-Audio
104
Automatic Locking
223
MP3
104
Easy Entry/Exit Feature
224
Audio OFF
92
Interior Lighting Delayed Switch-off
226
Interior Ambient Light
225
Rear Window Sunshade*
227
Trunk Opening-height Restriction
227
Tow-away Alarm
228
Page 221 of 705

220 Control systemsCOMAND vehicle menuIn this menu, you can program the follow-
ing vehicle functions:
Setting night security illumination
(Exterior Lighting Delayed Switch-off)
Use this function to set whether and how
long you would like the exterior lighting to
illuminate during darkness after exiting the
vehicle and all doors closed.
The exterior lighting automatically goes
out after the delayed switch-off time has
expired.
You can select:
“0 sec.”, the delayed switch-off feature
is deactivated
“15 sec.”, “30 sec.”, “45 sec.”, or
“60 sec.”, the delayed switch-off fea-
ture is activated
Select “Vehicle”.
The main area is active.
Selecting “Exterior Lighting Delayed
Switch-off” menu: Slide omp or
rotateymz.
Confirming selection: Press n.
Selecting length of time: Slide qmr
or rotate ymz.
Confirming selection: Press n.
or
Select “Vehicle” “Vehicle” “Exte-
rior Lighting Delayed Switch-off”.
A selection list appears.
The current setting is indicated by a
dotR.
Function
Page
Exterior Lighting Delayed
Switch-off
220
Locator Lighting
221
Exterior Mirror Convenience Set-
tings
222
Automatic Locking
223
Easy Entry/Exit Feature
224
Interior Ambient Light
225
Interior Lighting Delayed
Switch-off
226
Rear Window Sunshade
227
Trunk Opening-height Restriction
227
Tow-away Alarm
228
i
The components and operating principles of
COMAND can be found on (
page 79).
i
You can reactivate this function within
10 minutes by opening a door.
Page 228 of 705

227 Control systems
COMAND vehicle menu
Extending or retracting rear window sunshade
This function is used to extend or retract
the rear sunshade.
Select “Vehicle”.
The main area is active.
Selecting “Rear-window Sunshade”
function: Slide omp or rotate ymz.
Extending or retracting rear window
sunshade: Press n.
or
Select “Vehicle” “Vehicle”
“Rear-window Sunshade”.
Confirming selection: Press n.
Trunk opening-height restriction on/off
You can select whether the trunk lid should
open fully or only to the height of the roof.
Select “Vehicle”.
The main area is active.
Selecting “Trunk Opening-height Re-
striction” function: Slide omp or
rotateymz.
Confirming selection: Press n.
or
i
The components and operating principles of
COMAND can be found on (
page 79).
i
If you operate the rear-window sunshade via
COMAND or by using the favorite button
(
page 216), this takes precedence over the
buttons for the rear window sunshade in the rear
doors (
page 456).
i
You can program this function using the fa-
vorite button (
page 216).
i
At temperatures below -4°F (-20°C), the
rear window sunshade is switched off.
i
The components and operating principles of
COMAND can be found on (
page 79).
Page 229 of 705
228 Control systemsCOMAND vehicle menu
Select “Vehicle” “Vehicle” “Trunk
Opening-height Restriction”.
A checkmark appears when the trunk
opening-height restriction is switched
on.
Confirming selection: Press n.
Switching on/of the tow-away alarm
To prevent triggering the tow-away alarm
feature (
page 76), switch off the
tow-away alarm before towing the vehicle,
or when parking on a surface subject to
movement, such as a ferry or auto train.
Select “Vehicle”.
The main area is active.
Selecting “Tow-away Alarm” func-
tion: Slide omp or rotate ymz.
Confirming selection: Press n.or
Select “Vehicle” “Vehicle”
“Tow-away Alarm”.
A checkmark appears when the
tow-away alarm is switched on.
Confirming selection: Press n.
i
The components and operating principles of
COMAND can be found on (
page 79).
i
You can program the tow-away alarm func-
tion (page 216) using the favorite button in the
center console.
When you press the favorite button, you can
switch the functions on or off.
Page 304 of 705
303 Controls in detail
Locking and unlocking
Starter switch positions
Seats
Steering wheel
Mirrors
Memory function
Fastening the seat belts
Lighting
Windshield wipers
Power windowsDriving and parking
Automatic transmission
Instrument cluster
Driving systems
Automatic climate control
Trunk
Power tilt/sliding sunroof
Panorama roof with power
tilt/sliding panel*
Loading and storing
Useful features
Page 305 of 705

304 Controls in detailLocking and unlockingSmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys are of differ-
ent color to help distinguish each
SmartKey unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:
the doors
the trunk
the fuel filler flap
SmartKey with remote control1‹ Lock button
2ŠOpening button for trunk
(
page 436)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 68)
!
To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious personal injury.Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.