Page 89 of 376

89 Controls in detail
Locking and unlocking
Loss of KEYLESS-GO-card
If you lose your KEYLESS-GO card, you
should do the following:
Have the KEYLESS-GO card deactivat-
ed 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.
Opening 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.
1Locking knob
2Inside door handle
Pull on the door handle2.
If door was locked, the locking knob1
will move up.
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. The
switch is located on the driver’s door.
1Remote trunk lid release switch
2Indicator lamp
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.
Page 90 of 376

90 Controls in detailLocking and unlocking
Pull remote trunk lid release switch1.
The trunk unlocks. The indicator
lamp2 comes on. It remains lit until
you close the trunk again.
Trunk lid emergency release
The emergency release button is located
on the left side of the trunk.
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.
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 198). 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.
!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.
Page 91 of 376

91 Controls in detail
Locking and unlocking
Closing the trunk lid
1Handle
Lower trunk lid by pulling firmly on
handle1.
Automatic central locking
The doors and the trunk lid automatically
lock when the vehicle is set into motion.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
You can deactivate the automatic locking
using the control system (
page 128).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be espe-
cially careful when small children are
around.
iTo prevent an inadvertent lockout, do
not place the key in the trunk.
Vehicles with KEYLESS-GO*: To pre-
vent a possible inadvertent lockout, the
trunk lid will open automatically if a
KEYLESS-GO card is recognized inside
the trunk.
When the hardtop is retracted, it must
be completely lowered in the trunk be-
fore the trunk lid can be closed
(page 199).
Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle interi-
or.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
The vehicle automatically locks when
the ignition is switched on and the
wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or
more. You could therefore lock yourself
out when the vehicle
is pushed
is on a test stand
Page 92 of 376

92 Controls in detailLocking and unlockingLocking and unlocking from the inside
You can lock or unlock the vehicle from in-
side using the central locking switches.
This can be useful, for example, if you want
to unlock the passenger door from the in-
side or want to lock the vehicle before
starting to drive.
The switches are located above and be-
tween the center air vents of the air condi-
tioning.
Central locking switches1Locking
2Unlocking
Locking
Press central locking switch1.
If all the doors are closed, the vehicle
locks.
Unlocking
Press central locking switch2.
The vehicle unlocks.
iYou can open a locked door from inside
at any time. Open door only when con-
ditions are safe to do so.
If you have locked the vehicle with the
key or the KEYLESS-GO* card, the cen-
tral locking switches do not work.
iIf the vehicle was previously centrally
locked using the SmartKey or the
KEYLESS-GO* card, it will not unlock
using the central locking switch.Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO
* card (if so equipped) 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.
Page 93 of 376
93 Controls in detail
Seats
Seats
Information on seat adjustment can be
found in the “Getting started” section
(page 32).
Lumbar support
You can adjust the contour of the seat’s
lumbar support to best support your spine.
The thumbwheel is located on the lower
side of the seat.
1Thumb wheel
Make sure the ignition is switched on.
All the lamps in the instrument cluster
should light up.
Set the lumbar support between 0
and 5.
Multicontour backrest*
You can adjust the backrest contour of the
seat to support your spine.
The switches are located on the lower side
of the seat.
1Lumbar region support
2Shoulder region support
3Backrest side cushions
4Massage function (PULSE)
Make sure the ignition is switched on.
All the lamps in the instrument cluster
should light up.
Page 94 of 376
94 Controls in detailSeatsLumbar region support
Press
k
or
j
on rocker
switch1.
This selects the air cushion you wish to
adjust.
Press
æ
or
ç
on rocker
switch1.
The air cushion inflates or deflates.Shoulder region support
Press
æ
or
ç
on switch2.
The air cushion inflates or deflates.
Backrest side cushions
Press switch3 to the right or left.
The lateral support increases or de-
creases.Massage function (PULSE)
You can reduce muscle tension during long
trips by periodically using the massage
function.
Press button4.
The indicator lamp on button4 lights
up. The air cushions in the lumbar re-
gion inflate and deflate rhythmically.iThe massage function switches off au-
tomatically after approximately eight
minutes. The indicator lamp extinguish-
es.
Page 95 of 376
95 Controls in detail
Seats
Moving the seats forward and backward
You can move the seats forward and back
to facilitate loading and unloading.
The switch is located on the top side of the
seat.
1Seat forward
2Seat backwardMoving the seat forward
Press switch at1.
Moving the seat backward
Press switch at2.
Warning!
G
When moving the seats, be sure that no one
can be caught by them. Never place hands
under seat or near any moving parts during
a seat adjustment procedure. To stop the
seat from moving when potential danger ex-
ists:
press the switch again
move the seat adjustment switch on the
door (
page 32)
!To avoid damage to seats, make sure
that there is nothing in the cup holder
and that no bags are in the footwells or
behind the seats during seat move-
ment.
Page 96 of 376

96 Controls in detailSeatsSeat ventilation*
The switch is located on the door. The blue
indicator lamps on the switch show the
ventilation level selected:
1Seat ventilation switch
Make sure the ignition is switched on.All the lamps in the instrument cluster
light up.
Switching on the seat ventilation
Press switch1.
Three blue indicator lamps on the
switch light up.
Switching off the seat ventilation
Press switch1 repeatedly until all indi-
cator lamps go out.
Level 3
Three indicator lamps on
Level 2
Two indicator lamps on
Level 1
One indicator lamp on
Ventilation off
No indicator lamp on
iIn normal operation the seat ventilation
will switch off automatically after about
30 minutes.
!If one or all of the lamps blink on the
seat ventilation* switch, there is insuf-
ficient voltage since too many electri-
cal consumers are switched on. The
seat ventilation* switches off automat-
ically.
The seat ventilation* will switch back
on again automatically as soon as suffi-
cient voltage is available.