110 Controls in detailLocking and unlocking
Press lock button1 at trunk lid.
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.Unlocking and opening the trunk (vehi-
cles with KEYLESS-GO*)
You can unlock and open the trunk sepa-
rately.
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
The handle is located in the rear license
plate recess.
Pull on the handle
or
Press and hold buttonŠ until the
trunk unlocks and opens.
iIf the vehicle was previously centrally
locked with KEYLESS-GO, the trunk 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 at outside door handle
(page 107) or KEYLESS-GO lock-
ing/closing switch (
page 118).
!The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.
Vehicles with trunk opening/closing
system*: to stop the opening proce-
dure, press buttonŠ on the
SmartKey with KEYLESS-GO. The trunk
lid stops moving.iIf the trunk does not open, it is still
locked separately (
page 121).
iIf the vehicle was previously centrally
locked with KEYLESS-GO, the trunk will
lock automatically after closing it.
To confirm locking, all turn signal lamps
flash three times.
111 Controls in detail
Locking and unlocking
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.
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
iIf the vehicle has previously been
locked using 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 buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
In vehicles with KEYLESS-GO*
Press the KEYLESS-GO* start/stop
button (
page 37).
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
vehicle.
119 Controls in detail
Locking and unlocking
Press switch1 briefly.
All turn signal lamps flash three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
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.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.
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 KEYLESS-GO locking/closing
switch1
press the trunk closing switch
press the Šbutton on the SmartKey
with KEYLESS-GO
press the remote trunk lid switch (on the
driver’s door)
Even with the SmartKey with KEYLESS-GO
removed from the vehicle, the KEYLESS-GO
locking/closing switch can be operated.
Therefore do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment 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.
120 Controls in detailLocking and unlockingTrunk emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release
button1.
The trunk unlocks and opens.Illumination of the emergency release but-
ton:
The button will flash for 30 minutes
after opening the trunk.
The button will flash for 60 minutes
after closing the trunk.iThe emergency release button unlocks
and opens the trunk while the vehicle is
standing still or in motion.iThe emergency release button does
not open the trunk, if the vehicle bat-
tery is discharged or disconnected.
iIf the vehicle has previously been
locked using the SmartKey or
KEYLESS-GO*, the exterior lamps will
flash and the alarm will sound as the
trunk opens.
To cancel the alarm, do one of the fol-
lowing:
Insert the SmartKey in the starter
switch.
Press buttonŒ or ‹ on the
SmartKey.
In vehicles with KEYLESS-GO*
Pull an outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft (1 m) of the
vehicle.
Press the KEYLESS-GO* start/stop
button (
page 37).
The SmartKey with KEYLESS-GO
must be inside the vehicle.
269 Controls in detail
Useful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and pull the
tailgate recessed handle for minimum
of 20 seconds until the SOS button is
flashing.
The message
Connecting call
ap-
pears in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
The Response Center will then unlock your
vehicle with the remote door unlocking
feature.Stolen Vehicle Recovery services
In the event your vehicle was stolen:
Report the incident to the police.
The police will issue a numbered
incident report.
Pass this number on to the
Mercedes-Benz Response Center along
with your password issued to you when
you subscribed to the service.
The Response Center will then attempt
to covertly contact the vehicle’s
Tele Aid system. Once the vehicle is
located, the Response Center will
contact the local law enforcement and
you. The vehicle’s location will only be
provided to law enforcement.
iThe remote door unlock feature is
available if the relevant cellular phone
network is available.
The SOS button will flash and the
message
Connecting call
will appear
in the multifunction display to indicate
receipt of the door unlock command.
Once the vehicle is unlocked, a
Response Center specialist may
attempt to establish voice contact with
the vehicle occupants.
If the tailgate recessed handle was
pulled for more than 20 seconds
before door unlock authorization was
received by the Response Center, you
must wait 15 minutes before pulling
the tailgate recessed handle again.
iWhen the anti-theft alarm or the
tow-away alarm stays on for more than
30 seconds, a call is initiated automat-
ically to the Response Center. See
anti-theft alarm system (
page 93)
and tow-away alarm (
page 95).
402 Practical hintsUnlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in the direction of
the arrow and slide mechanical key2
out of the housing.Unlocking the driver’s door
1Unlocking
Insert the mechanical key into the driv-
er’s door lock until it stops.
Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking driver’s door and/or the
trunk with the mechanical key will trig-
ger the anti-theft alarm system. To can-
cel the alarm, insert the SmartKey or
the SmartKey with KEYLESS-GO* in the
starter switch.
437 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground or front wheels raised only so
far as necessary to have the vehicle moved
to a safe location where the recommended
towing methods can be employed.
!Do not tow-start the vehicle.!Use flatbed or wheel lift/dolly equip-
ment with SmartKey in starter switch
turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts.
Switch off the tow-away alarm (if
equipped) and the automatic central
locking
!If the vehicle is towed with the front
axle raised, the engine must be shut off
(SmartKey in starter switch position0
or1). Otherwise the ESP
® will immedi-
ately be engaged and will apply the rear
wheel brakes.
When towing the vehicle with all wheels
on the ground, the selector lever must
be in positionN and the SmartKey
must be in starter switch position2.
When towing the vehicle with all wheels
on the ground or the front axle raised,
the vehicle may be towed only for dis-
tances up to 30 miles (50 km) and at a
speed not to exceed 30 mph
(50 km/h).
!To be certain to avoid a possibility of
damage to the drive train, however, we
recommend the drive shaft be discon-
nected at the rear axle drive flange for
any towing beyond a short tow to a
nearby garage.
439 Practical hints
Towing the vehicle
Installing towing eye bolt
Front of vehicle
1Cover on right side of front bumper
To remove cover:
Press mark on cover in direction of ar-
row.
Lift cover off to reveal the threaded
hole for towing eye bolt.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, or KEYLESS-GO*
start/stop button in position2, the ve-
hicle doors lock if the left front wheel
as well as the right rear wheel are turn-
ing at vehicle speeds of approximately
9 mph (15 km/h) or more.
Switch off the tow-away alarm (if
equipped) (
page 95).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (page 122).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
iThe selector lever will remain locked in
positionP and the SmartKey will not
turn in the starter switch if the battery
is disconnected or discharged. For
more information see “Battery”
(page 431) or “Jump starting”
(page 435).
Manual unlocking of the transmission
selector lever (
page 404).