Page 29 of 434
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
99
2
Switches for open-
ing/closing front and rear
side windows
181
3
Memory function (for stor-
ing seat, mirror and steer-
ing wheel settings)
114
4
Seat heating switch
110
Seat ventilation* switch
112
5
Seat adjustment switch
34,
107
6
Remote trunk lid release
switch
102
7
Door pocket
215
Page 31 of 434

30 Getting startedUnlocking
The “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 provide you with further
information. The corresponding page refer-
ences are located at the end of each seg-
ment.
Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk lid
3ŒUnlock button
4ÂPanic button
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The SBC brake system is activated.
Enter the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 90).
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.
Page 91 of 434

90 Controls in detailLocking and unlocking
In 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
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 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 lid
the glove box
the storage compartment under the
armrest
the storage compartment in the rear
the fuel filler flap
SmartKey with remote control1‹Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4Œ Unlock button
5Battery check lamp
6Â Panic button (
page 74)
Page 94 of 434

93 Controls in detail
Locking and unlocking
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 to your car insurance
company immediately.
If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO*
come with two SmartKeys with
KEYLESS-GO, each with remote controls
and a removable mechanical key. The lock-
ing tabs for the mechanical key portion of
the two SmartKeys are a different color to
help distinguish each SmartKey unit.
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 grasp a door
handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks
the doors
the trunk lid
the glove box
the storage compartment under the
armrest
the storage compartment in the rear
the fuel filler flap
SmartKey with KEYLESS-GO1‹Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6Â Panic button (
page 74)
For information on using the SmartKey
buttons, see “SmartKey” (page 90).
Page 95 of 434

94 Controls in detailLocking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 90).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the remote control).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, 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.!To prevent possible malfunction, avoid
exposing the SmartKey with
KEYLESS-GO to high levels of electro-
magnetic radiation.
iYou can also close the power windows
(page 181) and the retractable hard-
top using the SmartKey with
KEYLESS-GO (
page 188).
iIf the vehicle has been parked for a
longer period of time, you must pull the
door handle in order to activate the
KEYLESS-GO function.
When you unlock the vehicle, the SBC
brake system is activated.
Page 101 of 434

100 Controls in detailLocking and unlocking
The trunk can also be opened using
the SmartKey, see “Locking and un-
locking” (
page 90)
the remote trunk lid release switch, see
“Opening the trunk from the inside”
(page 100)
the trunk lid emergency release button,
see “Trunk lid emergency release”
(page 102)Opening the trunk from the inside
You can open the trunk from the inside if
the vehicle is stationary and the retract-
able hardtop is fully opened or closed.
A minimum height clearance of
6.2 ft (1.88 m) is required to open the
trunk lid.
The switch is located on the driver’s door.
1Remote trunk lid release switch
2Indicator lamp
!Always make sure that there is suffi-
cient overhead clearance.iIf the trunk lid does not open, the entire
vehicle is still locked globally
(page 90).
To facilitate trunk loading and unload-
ing when the hardtop is retracted, you
can raise the hardtop from its storage
position in the trunk using the load as-
sist feature (
page 221). You may also
unhook the luggage cover.
Remember to resecure the luggage
cover after loading/unloading the
trunk. Otherwise you will not be able to
lower the retractable hardtop.
Page 102 of 434

101 Controls in detail
Locking and unlocking
Pull remote trunk lid release switch1.
The trunk lid unlocks. Indicator
lamp2 comes on and remains lit until
the trunk is closed again.
Lift the trunk lid.The trunk can also be opened using
the SmartKey, see “Locking and un-
locking” (
page 90)
the remote trunk lid release switch, see
“Opening the trunk from the inside”
(page 100)
the trunk lid emergency release button,
see “Trunk lid emergency release”
(page 102)
!Always make sure that there is suffi-
cient overhead clearance.
iTo facilitate trunk loading and unload-
ing when the hardtop is retracted, you
can raise the hardtop from its storage
position in the trunk using the loading
aid feature (
page 221). You may also
unhook the luggage cover.
Remember to resecure the luggage
cover after loading/unloading the
trunk. Otherwise you will not be able to
lower the retractable hardtop.
If the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed (
page 102). The
turn signals will flash three times to
confirm locking.
Page 107 of 434
106 Controls in detailLocking and unlockingLocking
Press central locking switch1.
If all the doors are closed, the vehicle
locks.
Unlocking
Press central locking switch2.
The vehicle unlocks.
iIf the vehicle was previously centrally
locked using the SmartKey or the
SmartKey with KEYLESS-GO*, it will
not unlock using the central locking
switch.
If the vehicle was previously locked
with the central locking switch
while in the global remote control
mode, the complete vehicle is un-
locked when a door is opened from
the inside
while in the selective remote con-
trol mode, only the door opened
from the inside is unlocked