ContentsSafety and Security........................... 61
Occupant safety................................... 62
Air bags .......................................... 63
Seat belts ....................................... 69
Children in the vehicle .................... 73
Blocking of rear door
window operation ........................... 84
Panic alarm .......................................... 86
Activating ....................................... 86
Deactivating ................................... 86
Driving safety systems ......................... 87
ABS ................................................ 87
BAS ................................................ 89
ESP ................................................. 89
SBC brake system .......................... 92
Four wheel electronic traction
system (4MATIC) with the ESP ....... 95
Anti-theft systems................................ 97
Immobilizer..................................... 97
Anti-theft alarm system .................. 98
Tow-away alarm ............................. 99
Controls in detail............................. 101
Locking and unlocking ....................... 102
SmartKey ..................................... 102
SmartKey with KEYLESS-GO* ...... 107
Opening the doors from the inside 114
Opening the tailgate ..................... 115
Closing the tailgate ...................... 117
Automatic central locking ............ 122
Locking and unlocking from the
inside ........................................... 122
Seats ................................................. 124
Easy-entry / exit feature ............... 124
Removing and installing front
seat head restraints ..................... 126
Rear seat head restraints ............. 127
Drive - Dynamic seat* with
multicontour features................... 130
Seat heating* ............................... 132
Seat ventilation* .......................... 133
Folding bench seat in cargo
compartment ............................... 134Memory function ............................... 138
Storing positions in memory ........ 139
Recalling positions from memory . 139
Storing exterior rear view mirror
parking position ........................... 140
Lighting ............................................. 141
Exterior lamp switch .................... 141
Combination switch ..................... 145
Hazard warning flasher ................ 146
Interior lighting ............................ 147
Door entry lamps ......................... 149
Interior lighting in the rear ........... 149
Instrument cluster ............................. 150
Instrument cluster illumination .... 150
Coolant temperature indicator ..... 151
Trip odometer .............................. 151
Tachometer .................................. 152
Outside temperature indicator ..... 152
30 At a glanceDoor control panel
Item
Page
1
Door handle
114
2
Seat adjustment
39
3
Memory function (for stor-
ing seat, exterior mirror
and steering wheel set-
tings)
138
4
Exterior rear view mirror
adjustment
42
5
Switches for opening/
closing front and rear side
windows, rear window
override switch
221
6
Remote tailgate release
switch, Tailgate opening
system*
122
32 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic
functions.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page
references are located at the end of each
segment.Unlocking
Unlocking with the SmartKeySmartKey 1‹Lock button
2ŠUnlock button for tailgate*
3ŒUnlock button
4ÂPanic button (
page 86)
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
For more information, see “Factory
setting” (
page 104).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
60 Getting startedParking and locking1Lock button on the door handle
After exiting the vehicle, press lock
button1 on the door handle or on the
tailgate.
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
For more information, see “Factory
setting” (
page 110).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.For more information, see the “Controls in
detail” section (
page 107).
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
98 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 tailgate
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.
opening the vehicle with the mechani-
cal key.
someone opens a door from the inside
if the vehicle was locked from the out-
side with the SmartKey or
KEYLESS-GO.Arming the alarm system
The alarm system is armed within approxi-
mately ten seconds after locking the vehi-
cle with the SmartKey or KEYLESS-GO*.
The turn signal lamps flash three times to
indicate that the alarm system is activated.
The indicator lamp in the central locking
switch (
page 27) begins to flash after
arming the alarm system.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
deactivated.
iIf the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid system* (
page 269) provid-
ed Tele Aid service was subscribed to
and properly activated, and that neces-
sary cellular service and GPS coverage
are available.
iIf the turn signal lamps do not flash
three times, one of the following ele-
ments may not be properly closed:
a door
the tailgate
Close the respective element and lock
the vehicle again.
102 Controls in detailIn 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 unlocking
For more information on locking and un-
locking, see “Getting started” (
page 32)
and (
page 56).
SmartKey
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 a different color to help
distinguish each key 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 tailgate
the fuel filler flap
SmartKey with remote control1‹ Lock button
2Š Unlock button* for the tailgate
3Mechanical key locking tab
4Œ Unlock button
5Battery check lamp
6Â Panic button (
page 86)
106 Controls in detailLocking and unlockingChecking the batteries
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Unlocking and opening the tailgate
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
Press and hold button Š until tail-
gate unlocks and begins to open.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 battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 408).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.
!The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system: To stop the opening proce-
dure, press buttonŠ. The tailgate
stops moving.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally when closed.
To confirm locking all turn signal lamps
flash three times.
107 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key. The locking tabs for the
mechanical key portion of the two Smart-
Keys with KEYLESS-GO are a different col-
or to help distinguish each SmartKey with
KEYLESS-GO unit.
The function of the SmartKey overrules the
KEYLESS-GO function.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you pull a door
handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks
the doors
the tailgate
the fuel filler flap
SmartKey 1‹ Lock button
2Š Unlock button* for the tailgate
3Mechanical key locking tab
4Œ Unlock button
5Battery check lamp
6Â Panic button (
page 86)
iWhen any outside door handle other
than the driver’s outside door handle is
pulled, the vehicle is centrally un-
locked.
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended 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.!To prevent possible malfunction, avoid
exposing the SmartKey with
KEYLESS-GO to high levels of electro-
magnetic radiation.