Page 28 of 376
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)
98
3
Seat adjustment*
32,
34, 93
4
Switches for opening/clos-
ing front door windows
187
5
Switch for rear door win-
dow override
71
6
Switches for opening/clos-
ing rear door windows
187
7
Remote trunk lid release 
switch
88 
         
        
        
     
        
        Page 30 of 376
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 SmartKeySmartKey with remote control 1‹
Lock button
2
Š
Opening button for trunk
3
Œ
Unlock button for doors
4
Â
Panic button* (
page 72)
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.
More information can be found in the 
“Controls in detail” section (
page 84).
iCanada only:
Only vehicles equipped with an 
anti-theft alarm system* have 
SmartKeys with integrated panic 
button*4. 
         
        
        
     
        
        Page 79 of 376

79 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized 
persons from starting your vehicle.
Activating
Removing the key from the starter 
switch activates the immobilizer.
Deactivating
Inserting the key in the starter switch 
deactivates the immobilizer.
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. The 
turn signal lamps blink three times to 
indicate that the alarm system is activated. 
A red indicator lamp in the switch for the 
tow-away alarm (
page 80) will blink after 
approximately ten seconds when the alarm 
system is completely armed.
iIn case the engine cannot be started 
(yet the vehicle’s battery is charged), 
the system is not operational. Contact 
an authorized Mercedes-Benz Center 
or call 1-800-FOR-MERCedes (in the 
USA), or 1-800-387-0100 (in Canada).
iIf the alarm stays on for more than 
20 seconds, an emergency call is 
initiated automatically by the Tele Aid 
system* (
page 209) 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, the tow-away sensor* is 
malfunctioning or one of the following 
elements may not be properly closed:
a door
the trunk lid
the hood
Close the respective element and lock 
the vehicle again. 
         
        
        
     
        
        Page 80 of 376

80 Safety and SecurityAnti-theft systemsDisarming the alarm system
The alarm system is disarmed when you 
unlock your vehicle with the remote 
control. The turn signal lamps blink once to 
indicate that the alarm system is 
deactivated.
Canceling the alarm
Insert the key in the starter switch.
or
Press the
Œ
 or
‹
 button on the 
key.
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.
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.
iThe alarm system will rearm automati-
cally again after approximately 
40 seconds if one of the doors or the 
trunk lid is not opened.
iThe tow-away protection alarm is 
triggered, for example, if the vehicle is 
lifted on one side.
If the alarm stays on for more than 
20 seconds, an emergency call is 
initiated automatically by the Tele Aid 
system* (
page 209) provided 
Tele Aid service was subscribed to and 
properly activated, and that necessary 
cellular service and GPS coverage are 
available. 
         
        
        
     
        
        Page 84 of 376

84 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 51).
Keys
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 
keys are a different color to help distin-
guish 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 trunk
the fuel filler flap
SmartKey with remote control1‹
 Lock button
2
Š
 Unlock button for the trunk lid
3Mechanical key locking tab
4
Œ
 Unlock button
5Battery check lamp
6
Â
 Panic button* (
page 72).
iYou can also open and close the power 
windows (
page 188) and slid-
ing/pop-up roof* (
page 191) using 
the SmartKey. 
         
        
        
     
        
        Page 88 of 376

88 Controls in detailLocking and unlockingOpening the trunk from the inside
You can open the trunk from the inside if 
the vehicle is stationary. 
A minimum height clearance of 5.75 ft. 
(1.75 m) is required to open the trunk lid.
The switch is located on the driver’s door.
1Remote trunk lid release switch with in-
dicator lamp
Press remote trunk lid release 
switch1.
The trunk lid opens. The indicator lamp 
in the switch remains lit as long as the 
trunk is open.The trunk can also be opened using the 
SmartKey (
page 86) or from its inside in 
an emergency, see “Trunk lid emergency 
release” (
page 89).
Opening the trunk
A minimum height clearance of 5.75 ft. 
(1.75 m) is required to open the trunk lid.
The handle is located above the rear li-
cense plate recess.
1Handle
Pull handle1 to open the trunk lid.
The trunk lid swings open upwards au-
tomatically. Always make sure that 
there is sufficient overhead clearance.
!The trunk lid swings open upwards au-
tomatically. Always make sure that 
there is sufficient overhead clearance.iIf the vehicle was previously centrally 
locked, the trunk lid will lock automati-
cally when closed (
page 89). The 
turn signals will flash three times to 
confirm locking.
If the vehicle was previously separately 
locked (
page 90) or locked with the 
SmartKey (page 85), the trunk lid will 
remain locked.
iThe vehicle must be unlocked. 
         
        
        
     
        
        Page 92 of 376

92 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the doors and the 
trunk from inside using the central locking 
switch. This can be useful, for example, if 
you want to lock the vehicle before starting 
to drive.
The fuel filler flap cannot be locked or un-
locked with the central locking switch.The switch is located in the center console.
Central locking switch1Locking
2Unlocking
Locking
Press upper half1 of the central lock-
ing switch.
If both front doors are closed, the vehi-
cle locks.Unlocking
Press lower half2 of the central lock-
ing switch.
The vehicle unlocks.
Warning!
G
When leaving the vehicle, always remove the 
key from the starter switch, take it with you 
and lock the vehicle. Do not leave children 
unattended in the vehicle, or with access to 
an unlocked vehicle. Unsupervised use of 
vehicle equipment may cause an accident 
and/or serious personal injury.
iYou can open a locked door from the 
inside. Open door only when conditions 
are safe to do so.
If the vehicle was previously centrally 
locked using the SmartKey, it will not 
unlock using the central locking switch.
If the vehicle was previously locked 
with the central locking switch
while in the selective remote con-
trol mode, only the door opened 
from the inside is unlocked.
while in the global remote control 
mode, the complete vehicle is un-
locked when a door is opened from 
the inside. 
         
        
        
     
        
        Page 126 of 376

126 Controls in detailControl systemSetting locator lighting
During darkness, the following lamps will 
come on when the exterior lamp switch is 
in position
U
, the locator lighting 
feature is activated, and the vehicle is 
unlocked by remote control:
Parking lamps
Tail lamps
License plate lamps
Front fog lamps
The locator lighting switches off when the 
driver’s door is opened. It switches off 
automatically after a period of approxi-
mately 40 seconds.
Move the selection marker with 
the
æ
 or
ç
 button to the 
LIGHTING 
submenu.
Press button
j
 or
k
 repeatedly 
until you see this message in the 
display: 
LOCATOR LIGHTING
.
The selection marker is on the current 
setting.
Press
æ
 or
ç
 to select the 
desired setting.
The locator lighting will be switched on 
or off.Setting night security illumination
(Exterior lamps delayed shut-off)
Use the 
HEADLAMPS DELAYED SHUT-OFF
 
function to set whether and for how long 
you would like the exterior lamps to illumi-
nate during darkness after all doors are 
closed. When the delayed shut-off feature 
is activated and the exterior lamp switch is 
in position
U
, the following lamps will 
remain lit after you remove the key from 
the starter switch:
Parking lamps
Tail lamps
License plate lamps
Front fog lampsiYou can reactivate this function within 
ten minutes by opening a door.
If you do not open a door after 
removing the key, the lamps will 
automatically switch off after 
60 seconds.