Page 4 of 394

ContentsSafety and Security........................... 55
Occupant safety................................... 56
Airbags ........................................... 57
Seat belts ....................................... 62
Children in the vehicle .................... 66
Blocking of rear side
window operation ........................... 72
Panic alarm .......................................... 73
Activating ....................................... 73
Deactivating ................................... 73
Driving safety systems ......................... 74
ABS ................................................ 74
BAS ................................................ 76
ESP ................................................. 76
Anti-theft systems................................ 79
Immobilizer..................................... 79
Anti-theft alarm system .................. 80
Tow-away alarm ............................. 81
Controls in detail............................... 83
Locking and unlocking ......................... 84
Keys ............................................... 84
SmartKey with KEYLESS-GO* ........ 88
Opening the doors from the inside . 92
Opening the trunk from the inside . 92
Trunk lid emergency release .......... 93
Closing the trunk lid ....................... 94
Separately locking the trunk .......... 94
Separately unlocking the trunk ...... 95
Automatic central locking .............. 95
Locking and unlocking
from the inside ............................... 95
Seats ................................................... 97
Easy-entry/exit feature .................. 97
Head restraints .............................. 97
Multicontour seat* ....................... 100
Heated seats* .............................. 101
Memory function ............................... 102
Storing positions into memory ..... 103
Recalling positions from memory . 103
Storing parking position ............... 103Lighting ............................................. 105
Exterior lamp switch .................... 105
Combination switch ..................... 107
Hazard warning flasher ................ 108
Interior lighting ............................ 109
Door entry lamps ......................... 110
Instrument cluster ............................. 111
Instrument cluster illumination .... 111
Coolant temperature display ........ 112
Trip odometer .............................. 112
Tachometer .................................. 113
Outside temperature indicator ..... 113
Control system .................................. 114
Multifunction display.................... 114
Multifunction steering wheel........ 115
Menus .......................................... 117
Standard display menu ................ 119
AUDIO menu ................................ 119
NAV menu .................................... 121
Distronic* menu .......................... 121
Malfunction memory menu .......... 122
Settings menu .............................. 123
Trip computer menu..................... 136
TEL menu* ................................... 138
Page 28 of 394
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
92
2
Seat adjustment
35, 97
3
Memory function (for stor-
ing seat, mirror and steer-
ing wheel settings)
102
4
Switches for opening/clos-
ing front door windows
188
5
Rear window override
switch
72
6
Switches for opening/clos-
ing rear windows
188
7
Remote trunk lid release
switch
92
Page 70 of 394

70 Safety and SecurityOccupant safetyInstallation of infant and child restraint
systems
1Anchorage ring
2Hook
Anchorage rings1 are located on the rear
side of outer rear backrests.Prior to installing a tether strap, note the
following steps:
Open the trunk and release the back-
rest.
Fold backrest forward.
Guide top tether strap between head
restraint and top of seat back.
Head restraint must be installed and
positioned such that the top tether
strap can pass freely between the head
restraint and the top of seat back.
Make sure that the tether strap is not
twisted.
Fold backrest back until it locks in
place.
Fold up anchorage ring1.
Securely fasten hook2, which is part of
the tether strap, to anchorage ring1.Warning!
G
Always lock backrest in its upright position
when rear seat bench is occupied by pas-
sengers, or the extended cargo area is not in
use. Check for secure locking by pushing
and pulling on the backrest.iFor safety, please make sure that the
hook has attached to the ring beyond
the safety catch.
Page 87 of 394
87 Controls in detail
Locking and unlocking
Opening the trunk lid
The handle is located in the rear license
plate recess.
Lift the trunk lid.
The trunk lid swings open upwards. Always
make sure that there is sufficient overhead
clearance.The trunk can also be opened from the in-
side in an emergency, see “Trunk lid emer-
gency release” (
page 93).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.
iThe vehicle must be unlocked.
Page 90 of 394

90 Controls in detailLocking and unlockingGlobal locking
Press lock button at door handle
(page 53) or trunk lid (
page 91).Unlocking the trunk lid
The handle is located in the rear license
plate recess.
Pull on the handle and lift up the trunk
lid.
The vehicle unlocks the trunk lid only.
If the trunk lid does not open, it is still
locked separately (
page 95).The trunk can also be opened from the in-
side in an emergency, see “Trunk lid emer-
gency release” (
page 93).
!If you cannot lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then either the batteries of the key are
discharged or the key is malfunction-
ing.
Check the batteries of the Smart-
Key with KEYLESS-GO (
page 86)
and replace them if necessary
(
page 312).
Use the mechanical key to unlock
the driver’s door (
page 310) and
trunk lid (
page 311) as required.
Lock the vehicle using the mechan-
ical key (
page 311).
If your SmartKey with KEYLESS-GO is
malfunctioning, contact your autho-
rized Mercedes-Benz Center.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient 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.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized in the area of the rear shelf
or inside the trunk.
Page 91 of 394

91 Controls in detail
Locking and unlocking
Locking the vehicle
1Trunk lock button
Press the lock button at door
(page 53) or trunk.
Closing the side windows and
sliding/pop-up roof
Press and hold lock button at door
(page 53) until the side windows and
the sliding/pop-up roof are closed.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with KEY-
LESS-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.
Warning!
G
When closing the windows and the slid-
ing/pop-up roof, be sure that there is no
danger of anyone being harmed by the clos-
ing 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 slid-
ing/pop-up roof will open for as long as
the door handle is held but the door not
opened.
Page 92 of 394
92 Controls in detailLocking and unlockingOpening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Inside door handle
2Locking knob
Pull on door handle1.
If door was locked, locking knob2 will
move up.
Opening the trunk from the inside
You can open the trunk using the trunk lid
release switch.
1Remote trunk lid release switch with in-
dicator lamp
Push remote trunk lid release switch 1.
The trunk opens. The indicator lamp
comes on. It remains lit until you close
the trunk again.
iIf you open a door, the side windows on
that side of the vehicle will lower slight-
ly. The windows close again when you
close the door.iIf the vehicle has previously been
locked from the outside with the re-
mote control, opening a door from the
inside will trigger the alarm.
To cancel the alarm, do one of the
following:
Press button
‹
or
Œ
on the
Smart Key.
Insert the SmartKey in the starter
switch.
Page 93 of 394
93 Controls in detail
Locking and unlocking
If the trunk lid does not open, it is still
locked separately (
page 95).
Trunk lid emergency release
The emergency release button is located in
the trunk lid.
Illumination of the emergency release but-
ton:
The button will blink for 30 minutes af-
ter opening the trunk.
The button will blink for 60 minutes af-
ter closing the trunk.
Briefly press the emergency release
button.
The trunk unlocks and the trunk lid
opens.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
!The emergency release button does
not open the trunk lid if the vehicle bat-
tery is discharged or disconnected.iIf the emergency release button is
pressed and the vehicle was centrally
locked, the exterior lamps will flash and
the alarm will sound as the trunk lid
opens.
To cancel the alarm, insert the key in
the starter switch or press button
Œ
or
‹
on the key.