Page 4 of 384

ContentsSafety and Security........................... 53
Occupant safety................................... 54
Airbags ........................................... 55
Seat belts ....................................... 60
Children in the vehicle .................... 63
Blocking of rear window operation . 69
Panic alarm .......................................... 70
Activating ....................................... 70
Deactivating ................................... 70
Driving safety systems ......................... 71
ABS ................................................ 71
BAS ................................................ 73
ESP ................................................. 73
Anti-theft systems................................ 76
Immobilizer..................................... 76
Anti-theft alarm system .................. 77
Tow-away alarm ............................. 78
Controls in detail............................... 79
Locking and unlocking ......................... 80
SmartKey ....................................... 80
KEYLESS-GO card* ........................ 83
Opening the doors
from the inside ............................... 87
Opening the trunk lid
from the inside ............................... 88
Opening the trunk lid
from the outside............................. 89
Trunk lid emergency release .......... 89
Closing the trunk lid ....................... 90
Separately locking the trunk .......... 90
Separately unlocking the trunk ...... 91
Trunk lid
opening / closing system* .............. 91
Power closing assist
for doors and trunk lid.................... 94
Automatic central locking .............. 94
Locking and unlocking
from the inside ............................... 95Seats .................................................... 96
Lumbar support .............................. 96
Easy-entry / exit feature .................. 96
Head restraints ............................... 97
Multicontour seat*.......................... 99
Folding forward
front seat backrests ..................... 100
Seat ventilation* .......................... 102
Seat heating................................. 103
Memory function ............................... 105
Storing positions into memory ..... 106
Recalling positions
from memory ............................... 106
Storing exterior rear
view mirror parking position ........ 107
Lighting ............................................. 108
Exterior lamp switch .................... 108
Combination switch ..................... 111
Hazard warning flasher ................ 111
Interior lighting ............................ 112
Courtesy lighting .......................... 113
Page 25 of 384
25 At a glance
Center console
Center console
Upper part
Item
Page
1
Rear window sunshade
156
2
Parking assist* (Parktronic
system) deactivation
switch
193
3
Active Body Control (ABC)
190
4
Level control switch
191
5
Central locking switch
95
Anti-theft alarm system in-
dicator lamp
77
6
Hazard warning flasher
on/off switch
111
7
Central unlocking switch
95
Item
Page
8
Electronic Stability Pro-
gram (ESP) control switch
75
9
Rear seat head restraints,
switch for folding down
97
10
Tow-away alarm switch
78
11
COMAND (see separate
operating instructions)
12
Automatic climate control
157
13
Ashtray
206
Lighter
207
Page 53 of 384
53 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
Page 70 of 384
70 Safety and SecurityPanic alarm
Panic alarmAn audible alarm and blinking exterior
lamps will operate for approximately
2½ minutes.
1
Â
button
Activating
Press and hold button1 for at least one
second.
Deactivating
Press button1 again
or
Insert key in the 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 77 of 384

77 Safety and Security
Anti-theft systems
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 system will also be triggered
when
someone attempts to raise the vehicle
the vehicle is opened with the mechan-
ical keyArming the alarm system
The alarm system is armed after locking
the vehicle with the remote control or
KEYLESS-GO*. The turn signal lamps blink
three times to indicate that the alarm sys-
tem is activated. The indicator lamp in the
central locking switch will blink after ap-
proximately 10 seconds when the alarm
system is completely armed (
page 95).Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the remote con-
trol or KEYLESS-GO*. The turn signal
lamps blink once to indicate that the alarm
system is deactivated.
Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the key in the starter switch.
or
Press the
Œ
or
‹
button.
With KEYLESS-GO*
Grasp the outside door handle.
or
Press the KEYLESS-GO* start/stop
button.
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.
iIf the turn signal lamps do not blink
three times one of the following ele-
ments may not be properly closed:
a door
the trunk lid
the hood
Close the respective element and lock
the vehicle again.
Page 78 of 384

78 Safety and SecurityAnti-theft systemsTow-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.Disarming 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.
1Indicator lamp
2Tow-away alarm off switch
The switch is located on the center con-
sole.
Turn off the ignition and remove the
key.
Press switch2.
Indicator lamp1 in the switch lights up
briefly.
Exit vehicle and lock your vehicle with
the key or (vehicles with KEY-
LESS-GO*) the lock button at each
door handle.
The tow-away alarm remains disarmed un-
til you lock your vehicle again.
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 provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.
iYou cannot disarm the tow-away alarm
if the ignition is turned on.
Page 81 of 384

81 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press button
Œ
.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The anti-theft alarm system is switched
off. If it is dark, the locator lighting
switches on.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if:
neither door nor trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not acti-
vatedGlobal locking
Press button
‹
.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.
The anti-theft alarm system is activat-
ed.
Selective setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressing
Œ
only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttons
Œ
and
‹
simultaneously for about five seconds
until battery check lamp5 blinks twice.
The key will then function as follows:
Unlocking driver’s door and fuel filler
flap
Press button
Œ
once.
Global unlocking
Press button
Œ
twice.Global locking
Press button
‹
.
Restoring to factory setting
Press and hold buttons
Œ
and
‹
simultaneously for about six seconds
until battery check lamp5 blinks twice.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the
KEYLESS-GO* card with you and lock the ve-
hicle. 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 re-
sult in an accident and/or serious injury.
Page 86 of 384

86 Controls in detailLocking and unlockingChecking vehicle lock status
If you cannot remember whether you have
locked the vehicle, you can check the lock
status using the KEYLESS-GO card.
Briefly press programming button1.
The indicator lamp for “Driver’s door”2
or “Global unlock”3 lights up in red or
green.
Vehicle lock status:
Red Vehicle is locked
Green Vehicle is unlockedLocking the vehicle
1Trunk lock button
Press the lock button at door
(page 52) or trunk1.
Closing the side windows and the
sliding / pop-up roof
Press and hold lock button at door
(page 52) until the side windows and
the sliding / pop-up roof are closed.
iWhen the vehicle is unlocked and the
anti-theft alarm system is switched off,
the turn signals illuminate briefly. If it is
dark, the locator lighting also switches
on (
page 137).
When the vehicle is locked and the an-
ti-theft alarm system is activated, the
the turn signals flash three times.
Warning!
G
When closing the windows and the sliding /
pop-up roof, make sure that there is no dan-
ger of anyone being harmed by the closing
procedure.
If potential danger exists, proceed as fol-
lows:
Release the lock button.
Pull on the door handle and hold firmly.
The side windows and the
sliding / pop-up roof will open for as long
as the door handle is held but the door
not opened.