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
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
87
2
Memory function (for stor-
ing seat, mirror and steer-
ing wheel settings)
105
3
Seat heating
103
Seat ventilation*
102
4
Seat adjustment
34, 96
5
Exterior mirror adjustment
38,
151
Item
Page
6
Switches for opening /
closing front door windows
169
7
Rear window
override switch
69
8
Switches for opening /
closing rear windows
169
9
Remote trunk lid release
switch
88
Trunk lid opening / closing
system* switch
91
30 Getting startedUnlockingThe“Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will help you with further in-
formation. The corresponding page refer-
ences are at the end of each segment.
UnlockingUnlocking with the SmartKey
Your vehicle comes equipped with two
SmartKeys with integrated remote con-
trols and removable mechanical key.
The locking tabs for the mechanical key
portion of the two keys are a different color
to help distinguish each key unit. SmartKey with remote control 1‹
Lock button
2
Š
Unlock button for trunk lid
3
Œ
Unlock button
4
Â
Panic button (
page 70)
Press unlock button
Œ
on the key.
All turn signal lamps blink once. The
locking knobs in the doors move up.
Get in the vehicle and insert the key in
the starter switch.iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
52 Getting startedParking and locking
Press the seat belt release button
(page 41).
1Lock button on the door handle
After exiting the vehicle, press lock
button1 on the door handle or on the
trunk lid (
page 86).
The locking knobs on the doors move
down. The turn signal indicators light
up briefly.More information can be found in the
“Controls in detail” section (
page 80).
!If you hear a warning signal you have ei-
ther
forgotten to turn off the lights, or
not put the gear selector lever inP
before opening the driver’s door.
Turn off the lights or place the gear se-
lector lever inP.
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure that there
is no possibility of someone getting caught
in a door during closing.
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO* card with you, and lock your vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Unsupervised use of vehicle equipment
may cause an accident and/or serious per-
sonal injury.
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.
80 Controls in detailLocking and unlockingIn the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlockingInformation on locking and unlocking can
be found in the “Getting started” section
on (
page 30) and (
page 49).
SmartKey
Your vehicle comes supplied with two
SmartKeys with remote controls and a re-
movable mechanical key. The locking tabs
for the mechanical key portion of the two
SmartKeys are a different color to help dis-
tinguish 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 controls1‹
Lock button
2
Š
Unlock button for trunk lid
3 Mechanical key locking tab
4
Œ
Unlock button
5Battery check lamp
6
Â
Panic button (
page 70)
iYou can also open and close the power
windows (
page 171) and sliding /
pop-up roof using the SmartKey
(
page 174).
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.
82 Controls in detailLocking and unlockingChecking the batteries
Press button
‹
or
Œ
.
Battery check lamp5 lights up briefly
to indicate that the key batteries are in
order.Unlocking the trunk lid
You can unlock the trunk separately.
A minimum height clearance of 6.1 ft
(1.90 m) is required to open the trunk lid.
Press and hold button
Š
until trunk
unlocks.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.
If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged or the key is malfunctioning.
Check the batteries in the key and
replace them if necessary
(page 299).
or
Use the mechanical key to unlock
the doors (
page 297) and trunk
(
page 298) as required. Lock the
vehicle using the mechanical key
(page 298).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If battery check lamp5 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
page 299).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
!The trunk lid swings open automatical-
ly. Always make sure that there is suffi-
cient overhead clearance.
iIf the vehicle was previously centrally
locked with the SmartKey, the trunk lid
will lock automatically after closing it.
The turn signals will flash three times to
confirm locking.
If the trunk was previously separately
locked (
page 90), the trunk lid will re-
main locked.