Page 116 of 521
115 Controls in detail
Locking and unlocking
Global locking
Press lock button on an outside door
handle (
page 63) or tailgate
(
page 118).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you pull the driver’s
outside door handle, only the driver’s door
and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 111)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:Unlocking driver’s door and fuel filler
flap
Pull the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
For more information, see “Factory
setting” (
page 114).
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is dis-
armed.
Page 117 of 521
116 Controls in detailLocking and unlockingGlobal unlocking
Pull any outside door handle other than
the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
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 63) or tailgate
(
page 118).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
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 (
page 111)
flashes twice.
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the batteries in the
SmartKey are discharged, the
SmartKey with KEYLESS-GO is mal-
functioning or the vehicle battery is
drained.
Check the batteries in the
SmartKey with KEYLESS-GO
(page 117) and replace them if
necessary (
page 429).
Use the mechanical key to unlock
the driver’s door (
page 424).
Use the mechanical key to lock the
driver’s door (
page 425).
Have the vehicle battery checked
by an authorized Mercedes-Benz
Center.
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
Page 118 of 521
117 Controls in detail
Locking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 (
page 111)
comes on briefly to indicate that the
SmartKey batteries are in order.Unlocking and opening the tailgate
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
The handle is located in the rear license
plate recess.
Pull on the handle.
or
Press and hold buttonŠ until the
tailgate unlocks and opens.
!If battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 429).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.
!The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system*: to stop the opening proce-
dure, press buttonŠ on the
SmartKey. The tailgate stops moving.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally when closed (
page 122).
To confirm locking all turn signal lamps
flash three times.
Page 119 of 521
118 Controls in detailLocking and unlockingGlobal locking using the lock button on
the tailgate
1Lock button
Press lock button1 on the tailgate.
All turn signal lamps flash three times.
An acoustic signal sounds three times
(if equipped and feature activated).
For more information, see “Factory set-
ting” (
page 114).
The locking knobs in the doors move
down.
The anti-theft alarm system is armed.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO, you should do the following:
Have the SmartKey with KEYLESS-GO
deactivated 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.
iTo prevent a possible inadvertent lock-
out, the tailgate will open automatically
if a SmartKey with KEYLESS-GO is
recognized inside the vehicle.iIf the vehicle was previously centrally
locked with KEYLESS-GO, the tailgate
will lock automatically after closing it.
To confirm locking all turn signal lamps
flash three times.iYou can also lock the vehicle using the
lock button on an outside door handle
(page 63) or KEYLESS-GO locking/
closing switch (
page 126).
Page 120 of 521
119 Controls in detail
Locking and unlocking
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
Front doors
Pull on door handle2 on the
respective front door to open door.
If door was locked, locking knob1 will
move up.Rear doors
Pull up locking knob1 on the
respective rear door to unlock door.
Pull on door handle2 on the
respective rear door to open door.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:
Press button Œ or ‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
In vehicles with KEYLESS-GO*:
Press the KEYLESS-GO* start/stop
button (
page 38).
The SmartKey with KEYLESS-GO
must be inside the vehicle.
Pull an outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft (1 m) of the ve-
hicle.
Page 121 of 521
120 Controls in detailLocking and unlockingOpening the tailgate
Opening the tailgate from the outside
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
The handle is located above the rear
license plate recess.
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Pull on the handle.
The tailgate opens.Opening the tailgate from the inside
with handle
You can open the tailgate from the inside if
the vehicle is stationary.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
The handle is located on the inside of the
tailgate.
1Handle
2Catch
To unlock the tailgate, move the
catch2 to the right.
Pull handle1 down and swing tailgate
upward.
!The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system*: to stop the opening proce-
dure, press buttonŠ on the
SmartKey. The tailgate stops moving.iThe tailgate can also be opened using
button Š on the SmartKey or
SmartKey with KEYLESS-GO.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally after closing it (
page 122).
To confirm locking all turn signal lamps
flash three times.
Page 122 of 521
121 Controls in detail
Locking and unlocking
Opening the tailgate from the inside au-
tomatically*
In vehicles with tailgate opening/closing
system* you can open the tailgate from
the inside if the vehicle is stationary.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
The switch is located on the driver’s door.
1Remote tailgate release switch with in-
dicator lamp
Pull and hold remote tailgate release
switch1 until
the tailgate is completely open
(opened to its full extent),
or
the tailgate has reached the desired
opening angle.
The tailgate stops moving as soon as
you release the switch. The indicator
lamp in the switch comes on. It re-
mains lit until the tailgate is closed
again.
!Always make sure there is sufficient
overhead clearance.iTo lock the tailgate, move the catch2
to the left.Warning!
G
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.
Children could open the tailgate from the in-
side, which could result in an accident
and/or serious personal injury.
Page 123 of 521
122 Controls in detailLocking and unlocking
Limiting opening height of tailgate*
Vehicles with tailgate opening/closing
system*:
The tailgate opening height can be limited
when transporting goods on a roof rack
(e.g. presence of an optional MB sport lug-
gage container). When activated, the tail-
gate opens to approximately the height of
the roof edge.
Activate the limiting opening height of
tailgate using the control system
(page 176).
Closing the tailgate
1Handle
Lower tailgate using handle1.
Close tailgate with hands placed flat on
the tailgate.
!The tailgate swings open upwards as
long as you pull and hold the remote
tailgate release switch. Always make
sure there is sufficient overhead clear-
ance. To stop the opening procedure,
release the remote tailgate release
switch.iThe tailgate can also be opened using
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO*.
