Page 99 of 456

98 Controls in detailLocking and unlockingSelective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you, grasp the driv-
er’s outside door handle only the driver’s
door and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 6 seconds un-
til battery check lamp5 flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap
Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.Global unlocking
Grasp the outside door handle on the
passenger side.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking
Press lock button on an outside door
handle (
page 60).
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs in the doors move down.
The anti-theft alarm system is armed.Restoring to factory setting
Press and hold buttonsŒ and‹
simultaneously for about 6 seconds un-
til battery check lamp5 flashes twice.
iYou can also lock the vehicle using the
lock button on the trunk lid (
page 99)
or, vehicles with trunk opening/closing
system*, KEYLESS-GO locking/closing
switch (
page 107).
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the battery of the
SmartKey with KEYLESS-GO is dis-
charged, the SmartKey with
KEYLESS-GO is malfunctioning or the
vehicle battery is drained.
Check the battery of the SmartKey
with KEYLESS-GO and replace them
if necessary (
page 377).
Use the mechanical key to unlock
the driver’s door (
page 372) and
the trunk (
page 373).
Use the mechanical key to lock the
driver’s door (
page 372).
Page 100 of 456

99 Controls in detail
Locking and unlocking
Checking the battery
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey with
KEYLESS-GO battery is in order.Global locking using the lock button on
the trunk lid
1Lock button
Press lock button1 on the trunk lid.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
Have the vehicle battery and the
battery connections checked
(page 391).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
!If battery check lamp5 does not
come on briefly during check, the
SmartKey with KEYLESS-GO battery is
discharged.
Replace the battery (
page 377).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the battery is checked within signal
range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
iYou can also lock the vehicle using the
lock button on an outside door handle
(page 60) or, vehicles with trunk
opening/closing system*,
KEYLESS-GO locking/closing switch
(page 107).
Page 101 of 456

100 Controls in detailLocking and unlockingUnlocking and opening the trunk
You can unlock and open the trunk sepa-
rately.
A minimum height clearance of 6.3 ft
(1.90 m) is required to open the trunk lid.
Press and hold button Š until trunk
unlocks and begins to open.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO or mechanical key you
should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.
Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key im-
mediately to your car insurance com-
pany.
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.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
Vehicles with trunk opening/closing
system*: To stop the opening proce-
dure, press buttonŠ. The trunk lid
stops moving.
iIf you open a door, the windows on that
side of the vehicle will lower slightly.
The windows close again when you
close the door.
Page 102 of 456

101 Controls in detail
Locking and unlocking
Opening the trunk
Opening the trunk from the outside
A minimum height clearance of 6.3 ft
(1.90 m) is required to open the trunk lid.
The trunk lock button is located in the rear
license plate recess.
1Trunk lock
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Press trunk lock1.
The trunk opens.
iIf the vehicle has previously been
locked with the SmartKey or
KEYLESS-GO*, opening a door from the
inside will trigger the anti-theft alarm
system.
To cancel the alarm, do one of the fol-
lowing:
Insert the SmartKey in the starter
switch.
Press button Œ or ‹ on the
SmartKey.
In vehicles with KEYLESS-GO*:
Grasp an outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft. (1 m) of the ve-
hicle.
Press the KEYLESS-GO* start/stop
button (
page 35).
The SmartKey with KEYLESS-GO
must be inside the vehicle.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
Vehicles with trunk opening/closing
system*: To stop the opening proce-
dure, press buttonŠ on the
SmartKey or SmartKey with
KEYLESS-GO*. iThe trunk can also be opened using
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
emergency release” (
page 109).
Page 103 of 456

102 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 6.3 ft
(1.90 m) is required to open the trunk lid.
The remote trunk opening/closing* switch
is located on the driver’s door.
1Indicator lamp
2Remote trunk opening/closing* switch
Pull switch2 until trunk begins to
open.
The trunk opens. The indicator lamp1
comes on and remains lit until the
trunk is closed.Limiting opening height of trunk lid*
Vehicles with trunk opening/closing sys-
tem*:
The trunk lid opening height can be limited
when transporting goods on a roof rack
(e.g. presence of an accessory MB sport
luggage container*). When activated, the
trunk lid opens to approximately the height
of the roof edge.
Activate the limiting opening height of
trunk lid using the control system
(page 163).
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance.
Vehicles with trunk opening/closing
system*: To stop the opening proce-
dure, press or pull remote trunk open-
ing/closing* switch2. iThe trunk can also be opened using
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
emergency release” (
page 109).
Page 104 of 456

103 Controls in detail
Locking and unlocking
Closing the trunk
Closing the trunk from the inside auto-
matically*
In vehicles with trunk opening/closing sys-
tem* you can close the trunk from the in-
side using the remote trunk
opening/closing* switch.
Press the remote trunk opening/clos-
ing* switch (
page 102) until the indi-
cator lamp in the switch goes out and
trunk lid is closed.
To interrupt the closing procedure:
Release the remote trunk open-
ing/closing* switch.If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high) in the upper motion
sequence, the closing procedure is
stopped and the trunk reopens slightly.iYou can also close the trunk by hand
(page 104).
Warning!
G
Maintain sight of trunk area while operating
the door mounted remote trunk open-
ing/closing* switch. Monitor the closing
procedure carefully to make sure no one is
in danger of being injured.
To interrupt the closing procedure, release
the door mounted remote trunk open-
ing/closing* switch.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the start-
er switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the remote trunk opening/closing* switch
can be operated. Therefore, do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.
Page 105 of 456

104 Controls in detailLocking and unlockingClosing the trunk from the outside
manually
1Handle
Lower trunk lid by pulling firmly on
handle1.
Push the trunk lid closed from the out-
side with hands placed flat on trunk lid.
The power closing assist automatically en-
sures that the lid is pulled closed com-
pletely (
page 110).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk. Be espe-
cially careful when small children are
around.
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
Vehicles with KEYLESS-GO*:
To prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.iIf the vehicle was previously centrally
locked, the trunk will lock automatical-
ly after closing it. All turn signal lamps
flash three times to confirm locking.
Page 106 of 456

105 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles without KEYLESS-GO*)
In vehicles with trunk opening/closing sys-
tem* you can close the trunk separately.
1Trunk closing switch
Press switch1 briefly.
The trunk closes.
If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.iYou can also close the trunk by hand
(page 104).
Warning!
G
Monitor the closing procedure carefully to
make sure 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,
do one of the following:
press trunk closing switch1
press the Š button on the SmartKey
press the remote trunk opening/clos-
ing* switch (on the driver’s door)
Even with the SmartKey removed from the
starter switch, the trunk closing switch can
be operated. Therefore, do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause an ac-
cident and/or serious personal injury.