Page 87 of 356
85 Safety and Security
Anti-theft systems
Arming tow-away alarm and glass
breakage sensor
When you lock your vehicle, the tow-away
and glass breakage sensor alarm is auto-
matically armed.
Disarming tow-away alarm and glass
breakage sensor
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm and
glass breakage sensor before towing the
vehicle, or when parking on a surface sub-
ject to movement, such as a ferry or auto
train.Vehicles with trip computer*
The buttons are located in the overhead
control panel.
1Reset button
2Mode button
3Display
4Glass breakage sensor
Turn key in steering lock to position2
(page 33).
Return key to position0 and remove it
from the steering lock.
Within 30 seconds press button1
or2.
The display shows
OFF
.
Exit vehicle and lock vehicle with
remote control (
page 32).
The tow-away alarm and glass breakage
sensor remain switched off until the key is
inserted in steering lock and turned to
position1.
Page 88 of 356
86 Safety and SecurityAnti-theft systemsVehicles without trip computer*
The buttons are located in the overhead
control panel.
1Switching off tow-away alarm and glass
breakage sensor
Turn key in steering lock to position2
(page 33).
Return key to position0 and remove it
from the steering lock.
Within 30 seconds press button1 on
the right or left side.
Exit vehicle and lock vehicle with
remote control (
page 32).
The tow-away alarm and glass breakage
sensor remain switched off until the key is
inserted in steering lock and turned to
position1.Canceling the alarm
To cancel the alarm:
Switch on ignition (
page 33).
or
Press theŒ or ‹button on the
remote control.
The alarm is canceled.
Page 91 of 356

89 Controls in detail
Locking and unlocking
Unlocking
Global unlocking
Press buttonŒ twice.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is switched
off.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of
unlocking if:
neither door nor liftgate is opened
the key is not inserted in the starter
switch
the central locking switch is not
activatedUnlocking the driver’s door and fuel
filler flap
Press buttonŒ once.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is
switched off.
Unlocking the liftgate
Press buttonŠ.
Only the liftgate unlocks.
Locking
Press button‹ once.
All turn signal lamps flash three times
to indicate that all doors, the liftgate
and the fuel filler flap are locked. The
anti-theft alarm system is activated.
Warning!
G
When leaving the vehicle, always remove the
key from the steering lock, and lock your ve-
hicle. 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 seri-
ous personal injury.!To prevent possible malfunction, avoid
exposing the remote control to high
levels of electromagnetic radiation.iIf the key is inserted in the steering
lock, the vehicle cannot be locked or
unlocked with the remote control.
Page 93 of 356

91 Controls in detail
Locking and unlocking
Rear doors
Pull up locking knob1 on the respec-
tive rear door.
Pull on door handle2 on the respec-
tive rear door to open door.
Opening the liftgate
Opening the liftgate from outside
A minimum height clearance of 7 ft
(2.15 m) is required to open the liftgate.
The handle is located above the rear
license plate recess.
1Grip molding
2Handle
The vehicle must be unlocked.
Pull on handle2.
Swing the liftgate upward by using the
grip molding1.Opening the liftgate from inside
A minimum height clearance of 7 ft
(2.15 m) is required to open the liftgate.
The release lever is located on the inside of
the liftgate.
1Release lever
2Catch
To unlock the liftgate, move the
catch2 to the right.
iIf the vehicle has previously been
locked from the outside using the
remote control, opening a door from
the inside will trigger the alarm.
To cancel the alarm, do one of the
following:
Switch on the ignition by turning
the key in the steering lock to
position2.
Press the‹ or Œbutton on
the remote control.
!Always make sure that there is suffi-
cient overhead clearance.
Page 177 of 356

175 Controls in detail
Useful features
The Tele Aid system
(Telematic Alarm Identification on
Demand)
The Tele Aid system consists of three
types of response:
automatic and manual emergency
roadside assistance and
information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted using the volume control on
the MCS unit.
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.Shortly after the completion of your ac-
quaintance call, you will receive a user ID
and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock, profile
and more.System self-check
Initially, after switching on ignation, mal-
functions are detected and indicated (the
indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
TELE AID - VISIT WORKSHOP
ap-
pears for approx. 10 seconds in the MCS
display.
iThe SOS button, the Roadside Assis-
tance button• and the Information
button¡ are located in the over-
head control panel.!The Tele Aid system utilizes the cellular
network for communication and the
GPS (G
lobal P
ositioning S
ystem) satel-
lites for vehicle location. If either of
these signals are unavailable, the Tele
Aid system may not function and if this
occurs, assistance must be summoned
by other means.
Page 185 of 356

183 Controls in detail
Useful features
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.
Garage door opener
The built-in remote control is capable of
operating up to three separately controlled
devices, for example garage door openers,
gate openers, or other devices compatible
with HomeLink
® or some other systems.
You can program the signal transmitter
buttons.
iThe remote door unlock feature is avail-
able if the relevant cellular phone net-
work is available.
The SOS button will flash and the mes-
sage
EMERGENCY CALL –
CALL CONNECTED
w i l l a p p e a r i n t h e M C S
display to indicate receipt of the door
unlock command.
Once the vehicle is unlocked, a
Response Center specialist will
attempt to establish voice contact with
the vehicle occupants.
If the outside liftgate handle was pulled
for more than 20 seconds before door
unlock authorization was received by
the Response Center, you must wait
15 minutes before pressing the outside
liftgate 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 83)
and tow-away alarm (
page 84).
Page 270 of 356
268 Practical hintsUnlocking / locking in an emergencyUnlocking the vehicle
If you are unable to unlock the driver’s
door using the remote control, open the
door using the folding key.Remote control with folding key
1Release button
Press release button1 on the remote
control.
The key folds out.Unlocking the driver’s door
1Unlocking
Insert the key into the driver’s door
lock until it stops.
Turn the key counterclockwise to
position1.
The driver’s door is unlocked.
iUnlocking the driver’s door with the
folding key will trigger the anti-theft
alarm system.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
remote control.
Insert the key in the steering lock.
Page 295 of 356

293 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 only so far as necessary to have
the vehicle moved to a safe location where
the recommended towing methods can be
employed.
!Use flatbed or wheel lift / dolly equip-
ment, with key in steering lock 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. Use the towing eyes.
Switch off the ESP (
page 81),
tow-away alarm (
page 85) and the
automatic central locking (
page 93).
!When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in positionN and the key must
be in steering lock position2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km / h).
If the vehicle is towed with the front
axle raised (observe instructions re-
garding flexible drive shaft), the engine
must be shut off (key in steering lock
position1). Otherwise, the 4-ETS may
become engaged which may cause loss
of towing control.
!To be certain to avoid additional dam-
age to the vehicle powertrain, however
you should observe the following:
With damage to the front axle
raise front axle
remove flexible drive shaft be-
tween rear axle and transfer
case
With damage to the rear axle
raise rear axle
tow vehicle with wheel lift or
dolly placed under front wheels
With damage to the transfer case
remove flexible drive shaft to
the drive axles
Always install new self-locking nuts
when reinstalling flexible drive shaft.