Page 92 of 399

92 Controls in detailLocking and unlockingUnlocking 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 vehicle was previously separately
locked or locked with the SmartKey, the
trunk lid will remain locked.The trunk can also be opened from the in-
side in an emergency, see "Trunk lid emer-
gency release" (
page 97).Locking the vehicle
1Lock button at trunk
Press the lock button at door
(page 53) or trunk.
Closing the side windows and slid-
ing/pop-up roof*
Press and hold lock button at door
(page 53) or trunk until the side win-
dows and the sliding/pop-up roof are
closed.
!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.
If you have left the SmartKey with KEY-
LESS-GO in the trunk, the trunk lid will
not close.
Page 93 of 399

93 Controls in detail
Locking and unlocking
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 Mer-
cedes-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 door handle2.
If door was locked, locking knob1 will
move up.
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 or trunk lid han-
dle and hold firmly. The side windows
and the sliding/pop-up roof will open.
Page 94 of 399

94 Controls in detailLocking and unlocking
Opening 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
Pull remote trunk lid release switch1.
The trunk opens. The indicator lamp in
the switch lights up and remains lit as
long as the trunk is open.The trunk can also be opened using the
SmartKey (
page 88) or from its inside in
an emergency, see "Trunk lid emergency
release" (
page 97).
iIf the vehicle has previously been
locked from the outside, opening a
door from the inside will trigger the an-
ti-theft alarm system. To cancel the
alarm, do one of the following:
Press button Œor ‹on the
SmartKey.
Insert the SmartKey in the starter
switch.
!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 96). The
turn signals will flash three times to
confirm locking.
If the vehicle was previously separately
locked (
page 98), the trunk lid will re-
main locked.
Page 97 of 399

97 Controls in detail
Locking and unlocking
Closing from outside
1Trunk closing switch
Press the closing switch briefly.
The trunk lid closes automatically.
When closing, if the trunk lid comes into
contact with an object (e.g. luggage that
has been piled too high) in the upper mo-
tion sequence, the closing procedure is
stopped and the trunk re-opens slightly.
Trunk lid emergency release
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press the emergency release
button.
The trunk unlocks and the trunk lid
opens.
Warning!
G
Monitor the closing procedure carefully to
ensure that no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
press the remote control switch for the
trunk lid or the
Š
key on the remote con-
trol.
!Do not place the key in the open trunk.
You may lock yourself out.
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.
!The emergency release button unlocks
and opens the trunk while the vehicle is
standing or driving.
Page 98 of 399

98 Controls in detailLocking and unlockingIllumination 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.
Separately locking the trunk
The lock is located next to the recessed
handle.
1Unlocked
2Locked
Close the trunk lid (
page 96).
Pull the mechanical key out of the
SmartKey (
page 329).
Insert the mechanical key in the trunk
lid lock.
Turn the key completely to the right to
position2.
The trunk remains locked even when the
vehicle is centrally unlocked.
!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.
To cancel the alarm, insert the key in
the starter switch or press buttonŒ
or ‹ on the key.
iTo deny any unauthorized person ac-
cess to the trunk, lock it separately
with the mechanical key. Leave only
the SmartKey without its mechanical
key inside the vehicle.
iYou can only cancel the separate trunk
locking mode by means of the mechan-
ical key.
Page 99 of 399

99 Controls in detail
Locking and unlocking
Separately unlocking the trunk
Pull the mechanical key out of the
SmartKey (
page 329).
Insert the mechanical key in the trunk
lid lock.
Turn the key completely to the left to
position1, see above.
You can now open the trunk (
page 96).
Automatic central locking
The doors and the trunk automatically lock
when the ignition is switched on and the
wheels are turning at vehicle speeds of ap-
proximately 9 mph (15 km/h) or more.
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
mode over the control system
(
page 142).
iUnlocking the trunk with the mechani-
cal key will trigger the anti-theft alarm
system. To cancel the alarm, do one of
the following:
Press button Œor ‹on the
SmartKey.
Insert the SmartKey in the starter
switch.
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 101 of 399
101 Controls in detail
Locking and unlocking
Locking the vehicle from the trunk*
Vehicles with trunk lid opening/closing
system* and KEYLESS-GO* can be central-
ly locked using a switch in the trunk lid.
1Central locking
Press button 1.
The vehicle is centrally locked.
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 105 of 399

105 Controls in detailSeats
1Seat cushion depth
2Backrest bottom
3Backrest center
4Side bolster adjustment
Adjusting the multicontour seat in the or-
der listed above is recommended.
Make sure that the ignition is switched
on.
All lamps in the instrument cluster light
up.
Adjusting backrest contour
Adjust the seat cushion depth to the
length of your upper leg using switch 1.
Adjust the backrest contour to the con-
tour of your back using æor ç.
Move the backrest support to the bot-
tom by using button2 or to the center
by using button3.
Adjust the side bolsters so that they
provide good lateral support using
button4.
Dynamic driving seat*
The dynamic driving seat automatically ad-
justs the lateral support provided by the
backrest to your driving style.
1Backrest center
2Massage function
3Backrest side bolsters
4Activate dynamic driving function
5Seat cushion depth
6Backrest bottom
The dynamic driving seat electronically
controls the air pressure in the air cham-
bers of the backrest side bolsters. This
function improves driving comfort and
pleasure.