Page 4 of 440

ContentsSafety and Security........................... 57
Occupant safety................................... 58
Airbags ........................................... 59
Seat belts ....................................... 64
Children in the vehicle .................... 68
Blocking of rear side
window operation ........................... 74
Panic alarm .......................................... 75
Activating ....................................... 75
Deactivating ................................... 75
Driving safety systems ......................... 76
ABS ................................................ 76
BAS ................................................ 77
ESP ................................................. 78
Anti-theft systems................................ 81
Immobilizer..................................... 81
Anti-theft alarm system .................. 82
Tow-away alarm ............................. 83
Controls in detail............................... 85
Locking and unlocking ......................... 86
SmartKeys...................................... 86
SmartKey with KEYLESS-GO* ........ 89
Opening the doors
from the inside ............................... 95
Opening the trunk .......................... 96
Closing the trunk............................ 97
Trunk lid
opening/closing system* .............. 98
Trunk lid emergency release ........ 103
Separately locking the trunk ........ 104
Separately unlocking the trunk .... 105
Automatic central locking ............ 105
Locking and unlocking
from the inside ............................. 106
Seats ................................................. 107
Easy-entry/exit feature ................ 107
Removing and installing
front seat head restraints............. 108
Rear seats head restraints ........... 109
Multicontour seat* ....................... 112
Seat ventilation* .......................... 113
Seat heating* ............................... 114Memory function ............................... 116
Storing positions into memory ..... 117
Recalling positions from memory . 117
Storing exterior rear view
mirror parking position ................ 118
Lighting ............................................. 119
Exterior lamp switch .................... 119
Combination switch ..................... 123
Hazard warning flasher ................ 123
Interior lighting ............................ 124
Door entry lamps ......................... 125
Instrument cluster ............................. 126
Instrument cluster illumination .... 126
Coolant temperature indicator ..... 127
Trip odometer .............................. 127
Tachometer .................................. 128
Outside temperature indicator ..... 128
Page 25 of 440
25 At a glance
Center console
Center console
Upper part
Item
Page
1
Seat heater*, driver’s side
Seat ventilation*, driver’s
side
114
2
Parking assist* (Parktronic
system*) deactivation
switch
236
3
Rear window sunshade*
170
4
ESP control switch
78
5
Hazard warning flasher
on/off switch
123
6
Central locking switch
106
7
Rear head restraints, fold-
ing down switch
110
Item
Page
8
Tow-away alarm switch
Anti-theft alarm system in-
dicator lamp
83
84
9
Seat heater*, passenger
side
Seat ventilation*,
passenger side
114
a
PASS. AIRBAG OFF
indicator lamp
70,
313
b
Audio system or
COMAND* (see separate
operating instructions)
134
c
Automatic climate control
Rear window defroster
172,
171
d
Ashtray
247
Page 57 of 440
57 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
Page 75 of 440
75 Safety and Security
Panic alarm
Panic alarm
An audible alarm and flashing exterior
lamps will operate for approximately
2½ minutes.
1Â button
Activating
Press and hold button1 for at least
one second.
Deactivating
Press button1 again
or
Insert SmartKey in starter switch.
iFor operation in the USA only: This de-
vice complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful
interference, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.
Page 82 of 440

82 Safety and SecurityAnti-theft systemsAnti-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
the vehicle is opened with the mechan-
ical key.Arming the alarm system
The alarm system is armed after locking
the vehicle with the SmartKey or
KEYLESS-GO*. The turn signal lamps flash
three times to indicate that the alarm sys-
tem is activated. The indicator lamp in the
switch for the tow-away alarm will flash af-
ter approximately 30 seconds when the
alarm system is completely armed
(
page 25).Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the SmartKey or
KEYLESS-GO*. The turn signal lamps flash
once to indicate that the alarm system is
deactivatediIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem (
page 251) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
iIf the turn signal lamps do not flash
three times one of the following ele-
ments may not be properly closed:
a door
the trunk lid
Close the respective element and lock
the vehicle again.
iThe alarm system will rearm automati-
cally again after approximately 40 sec-
onds if no door was opened.
Page 83 of 440
83 Safety and Security
Anti-theft systems
Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press the Œ or ‹ button on the
SmartKey.
With KEYLESS-GO*
Grasp the outside door handle.
or
Press the KEYLESS-GO start/stop
button.
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.Arming tow-away alarm
When you lock your vehicle, the tow-away
alarm is automatically armed after about
30 seconds.
When you unlock your vehicle, the
tow-away protection disarms
automatically.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem (
page 251) provided Tele Aid
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
Page 84 of 440
84 Safety and SecurityAnti-theft systemsDisarming tow-away alarm
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.
The switch is located on the center con-
sole.
1Tow-away alarm off switch
2Indicator lamp
Turn off the ignition and remove the
SmartKey.
Press upper half1 of the switch.
Indicator lamp2 in the switch comes
on briefly.
Exit and lock your vehicle with the
SmartKey or (vehicles with
KEYLESS-GO*) the lock button at each
door handle.
The tow-away alarm remains disarmed un-
til you lock your vehicle again.Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press the Œ or ‹ button on the
SmartKey.
With KEYLESS-GO*
Grasp the outside door handle.
or
Press the KEYLESS-GO start/stop
button.
iYou cannot disarm the tow-away alarm
while the ignition is turned on.
Page 95 of 440

95 Controls in detail
Locking and unlocking
Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO, you should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.
Report the loss immediately to your car
insurance company.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
Opening the doors from the inside
You can open a locked door from the in-
side. Open doors only when conditions are
safe to do so.
1Locking knob
2Inside door handle
Pull on door handle2.
If door was locked, locking knob1 will
move up.
iIf the vehicle has previously been
locked from the outside with the
SmartKey, opening a door from the in-
side will trigger the anti-theft alarm sys-
tem.
To cancel the alarm, do one of the
following:
With the SmartKey
Insert the SmartKey in the starter
switch.
Press button‹ orŒ on the
SmartKey.
With KEYLESS-GO*
Grasp the outside door handle.
Press the KEYLESS-GO* start/stop
button.