Page 98 of 481

97 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.
The immobilizer is activated.
With KEYLESS-GO*
Press the KEYLESS-GO start/stop but-
ton once.
The engine is turned off.
Open the driver’s door.Deactivating
With the SmartKey
Turn the SmartKey in the starter switch
to position2 (
page 38).
With KEYLESS-GO*
Start the engine by means of the
start/stop button on the gear selector
lever.
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 activat-
ing element (a door, for example) is imme-
diately closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
(only vehicles with tow-away alarm)
the vehicle is opened with the
mechanical key
someone opens a door from the inside
iIn case the engine cannot be started (yet the
vehicle’s battery is charged), the system is not
operational. Contact an authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).
Page 99 of 481

98 Safety and Security
Anti-theft systems
Arming the alarm system
The indicator lamp located in the central
locking switch in the center console.
1Indicator lamp
Lock the vehicle with the SmartKey or
KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the alarm system is
armed. The indicator lamp1 begins to
flash after approximately 30 seconds
after arming the alarm system.
Disarming the alarm system
Unlock the vehicle with the SmartKey
or KEYLESS-GO*.
The turn signal lamps flash once to
indicate that the alarm system is
disarmed.Canceling the alarm
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press button Œ or ‹ on the
SmartKey.
With KEYLESS-GO*
Pull an outside door handle.
The SmartKey with KEYLESS-GO* must
be within 3 ft (1 m) of the vehicle.
or
Press the KEYLESS-GO* start/stop
button (
page 39).
The SmartKey with KEYLESS-GO* must
be inside the vehicle.
iIf 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 256) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary cellular service and GPS coverage are
available.
iIf the turn signal lamps do 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.
iThe alarm system will rearm automatically
after approximately 40 seconds if neither a door
nor the trunk was opened.
Page 130 of 481

129 Controls in detail
Lighting
Locator lighting and night security
illumination
Locator lighting and night security illumi-
nation are described in the “Control sys-
tem” section, see “Setting locator lighting”
(
page 160) and “Setting night security il-
lumination (Headlamps delayed shut-off)”
(
page 161).
Fog lamps
Front fog lamps
Switch on the low beam
headlampsB (
page 55).
Pull out exterior lamp switch to first
stop.
The front fog lamps switch on.
The green indicator lamp‡ in the
exterior lamp switch comes on
(
page 126).
Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp‡ in the
exterior lamp switch goes out.
Rear fog lamp (driver’s side only)
Switch on the low beam
headlampsB (
page 55).
Pull out exterior lamp switch to second
stop.
The front fog lamps and the rear fog
lamp switch on.
The yellow indicator lamp† in the
exterior lamp switch comes on
(
page 126).
Push in the exterior lamp switch to first
stop.
The rear fog lamp is switched off.
The yellow indicator lamp† in the
exterior lamp switch goes out.
The front fog lamps remain lit.
Warning!G
In low ambient lighting or foggy conditions,
only switch from positionU to B with
the vehicle at a standstill in a safe location.
Switching fromU to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
iFog lamps will operate with the parking
lamps and/or the low beam headlamps on. Fog
lamps should only be used in conjunction with
low beam headlamps. Consult your State or
Province Motor Vehicle Regulations regarding
permissible lamp operation.
iFog lamps cannot be switched on with the
exterior lamp switch in positionU. To switch
on the fog lamps, turn the exterior lamp switch
to positionB first.
Page 155 of 481
154 Controls in detail
Control system
The table below shows what settings can
be changed within the various menus. Detailed instructions on making individual
settings can be found on the following pag-
es.
Instrument clusterTime/DateLightingVehicleConvenience
(page 155)(page 157)(page 159)(page 162)(page 163)
Selecting speedometer
display modeSynchronizing the timeSetting daytime running
lamp mode (USA only)Setting automatic
lockingActivating
easy-entry/exit feature
Selecting languageSetting time (hours)Setting locator lightingAudio search function
Selecting display (speed
display or outside tem-
perature) for status lineSetting time (minutes)Setting ambient lighting
Selecting display (speed
display or outside tem-
perature) for basic dis-
playSetting date (month)Setting night security illu-
mination
Setting date (day)Setting interior lighting
delayed shut-off
Setting date (year)
Page 160 of 481

159 Controls in detail
Control system
Setting date (year)
Move the selection marker with the
æ or çbutton to the
Time/Date
submenu.
Press buttonj ork repeatedly
until the message
Set Date Year ap-
pears in the multifunction display.
The selection marker is on the year
setting.
Press buttonæ orç to set the
year.Lighting submenu
Access the
Lighting submenu via the
Settings menu. Use the Lighting sub-
menu to change the lamp and lighting set-
tings on your vehicle. The following
functions are available:Setting daytime running lamp mode
(USA only)
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Headlamp Mode ap-
pears in the multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to select
manual operation (
Manual) or daytime
running lamp mode (
Constant).
FunctionPage
Setting daytime running lamp
mode (USA only)159
Setting locator lighting160
Setting ambient lighting161
Setting night security illumina-
tion161
Setting interior lighting delayed
shut-off162
iThis function is not available in countries
where the daytime running lamp mode is manda-
tory and therefore in a constant mode.
Page 162 of 481

161 Controls in detail
Control system
Setting ambient lighting
Use this function to adjust the brightness
of the ambient lighting.
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Ambient Light Lev-
el
appears in the multifunction dis-
play.
The selection marker is on the current
setting.
Press buttonæ orç to select
the desired brightness of the ambient
lighting.
The setting
1 represents the darkest
level and setting
5 the brightest level.The ambient light is switched off at
setting
0.
Setting night security illumination
(Headlamps delayed shut-off feature)
Use this function to set whether you would
like the exterior lamps to remain on for
15 seconds during darkness after exiting
the vehicle and closing all doors.
With the delayed shut-off feature activated
and the exterior lamp switch in
positionU before the engine is turned
off, the following lamps will switch on
when the engine is turned off.
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
If after turning off the engine you do not
open a door or do not close an opened
door, the lamps will automatically switch
off after 60 seconds.
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Headlamps Delayed
Shut-off
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the headlamps delayed shut-off feature
On or Off.
Turn the exterior lamp switch to
positionU before turning off the
engine.
The headlamps delayed shut-off fea-
ture is activated.
Page 172 of 481
171 Controls in detail
Automatic transmission
Gear selector lever positions
The current gear selector lever position
appears in the multifunction display.
1Current gear selector lever positionEffect
ìPark position
Gear selector lever position
when the vehicle is parked. Place
gear selector lever in park
positionP only when vehicle is
stopped. The park position is not
intended to serve as a brake
when the vehicle is parked.
Rather, the driver should always
set the parking brake in addition
to placing the gear selector lever
in park positionP to secure the
vehicle.
Effect
The SmartKey can only be
removed from the starter switch
with the gear selector lever in
park positionP. With the
SmartKey removed, the gear
selector lever is locked in park
positionP.
If the vehicle’s electrical system
is malfunctioning, the gear
selector lever could remain
locked in park positionP
(
page 400).
íReverse gear
Place gear selector lever in
positionR only when vehicle is
stopped.
Page 239 of 481

238 Controls in detail
Loading
Roof rack*
1Trim
Open trim1 at the trim strips in the
roof.
Secure the roof rack according to
manufacturer’s instructions for instal-
lation.
Loading instructions
The total load weight including vehicle
occupants and luggage/cargo should not
exceed the total load limit indicated on the
corresponding placard located on the driv-
er’s door B-pillar.
The handling characteristics of a fully load-
ed vehicle depend greatly on the load dis-
tribution. It is therefore recommended to
load the vehicle according to the illustra-
tions shown, with the heaviest items being
placed towards the front of the vehicle.
Always place items being carried against
front or rear seat backrests, and fasten
them as securely as possible.
The heaviest portion of the cargo should
always be kept as low as possible since it
influences the handling characteristics of
the vehicle.
Warning!G
Only use roof racks approved by
Mercedes-Benz for your vehicle model to
avoid damage to the vehicle.
Follow the manufacturer’s installation
instructions. Otherwise, an improperly at-
tached roof rack system or its load could be-
come detached from the vehicle.
Do not exceed the maximum roof load of
220 lb (100 kg).
Take into consideration that when the roof
rack is loaded, the handling characteristics
are different from those when operating the
vehicles without the roof rack loaded.
!Load the roof rack in such a way that the ve-
hicle cannot be damaged while driving.
Make sure
you can fully raise the tilt/sliding sunroof
you can fully open the trunk