Page 75 of 376

75 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the key: Removing the key from
the starter switch activates the immo-
bilizer.
With KEYLESS-GO*: Turning off the en-
gine by means of the start/stop button
on the gear selector lever activates the
immobilizer.
Deactivating
With the key: Inserting the key in the
starter switch deactivates the immobi-
lizer.
With KEYLESS-GO*: Starting the en-
gine by means of the start/stop button
on the gear selector lever deactivates
the immobilizer.
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the trunk lid
the hood
a storage compartment in the rear
the glove box
the storage space under the armrest
The alarm system will also be triggered
when
someone attempts to raise the vehicle
unlocking and opening the driver’s
door with the mechanical key
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem (
page 202) provided Tele Aid
service was subscribed to and properly
activated.
Page 80 of 376

80 Controls in detailLocking and unlockingIn the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. if you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlockingKeys
Your vehicle comes supplied with two
SmartKeys with remote controls and a re-
movable mechanical key. The locking tabs
for the mechanical key portion of the two
keys are a different color to help distin-
guish each key unit.
The remote control key provides an ex-
tended operating range. To prevent theft,
however, it is advisable to only unlock the
vehicle when you are in close proximity to
it.
The key centrally locks and unlocks:
the doors
the trunk lid
the glove box
the storage space under the armrest
the storage compartment in the rear
the fuel filler flap
SmartKey with remote controls1‹
Lock button
2
Š
Unlock button for the trunk lid
3Mechanical key locking tab
4
Œ
Unlock button
5Battery check lamp
6
Â
Panic button (
page 67)
iYou can also open and close the re-
tractable hardtop using the key
(page 163).
Page 84 of 376

84 Controls in detailLocking and unlockingSeparately unlocking the trunk
Turn the key completely to the left to
position1.
You can now open the trunk.
Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.
If necessary have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
KEYLESS-GO card*
Specially equipped vehicles come with two
KEYLESS-GO cards. On these vehicles, the
validity of the KEYLESS-GO card is
checked every time you grasp a door
handle.
If the card is valid, your vehicle unlocks
the doors
the trunk lid
the glove box
the storage space under the armrest
the storage compartment in the rear
the fuel filler flap
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO
* card (if so equipped) with you
and lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. Unsupervised use of
vehicle equipment may cause an accident
and/or serious personal injury.
!To prevent possible malfunction, avoid
exposing the KEYLESS-GO* card to
high levels of electromagnetic radia-
tion.
Page 156 of 376
156 Controls in detailAutomatic climate controlVentilated storage compartments
The glove box and the armrest storage
compartment are have their own air vents
that allow for cooling ventilation when the
automatic climate control system is acti-
vated.
Glove box1Thumbwheel
2Air vent
Opening the air vent
Turn the wheel1 upwards.
Closing the air vent
Turn the wheel1 downwards.
Storage compartment under the armrest1Thumbwheel
2Air vent
Opening the air vent
Turn the wheel1 to the right.
Closing the air vent
Turn the wheel1 to the left.
iYou should keep these air vents closed
when outside temperatures are low.
Page 190 of 376
190 Controls in detailUseful features
Useful featuresInterior storage spaces Glove box
An AUX socket to the audio system for por-
table audio devices is installed in the glove
box.
1Button to open
2Glove box
Opening the glove box
Press button1.
The glove box lid opens downward.
Closing the glove box
Push lid up to close.Cup holders
1Left cup holder
2Right cup holder
Opening
Briefly press cup holder cover.
The cup holder opens automatically.
Warning!
G
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care
when stowing objects in the vehicle. Put lug-
g a g e o r c a r g o i n t h e t r u n k i f p o s s i b l e . D o n o t
pile luggage or cargo higher than the seat
backs. Do not place anything on shelf be-
hind roll bar.
Parcel nets cannot secure hard or heavy ob-
jects. Warning!
G
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
an accident.
Page 191 of 376
191 Controls in detail
Useful features
Auxiliary cup holder
You can fasten the auxiliary cup holder
onto the left front side of the passenger
seat.
Inserting the auxiliary cup holder
1Cover
Pull up the cover and place it in a
storage compartment.2Auxiliary cup holder
3Insert
Press the auxiliary cup holder2 in the
direction of the arrow until it snaps in
place.
You can now place a larger container in
the holder. For even larger containers
you can take out the insert3. Make
sure that the container does not press
against the glove box.
Warning!
G
When not in use, keep the cup holder
closed. Place only containers that fit into the
cup holder to prevent spills. Use lids on
open containers and do not fill containers to
a height where the contents, especially hot
liquids, could spill during vehicle maneu-
vers.
Page 194 of 376

194 Controls in detailUseful featuresLocking the storage compartments
separately
You can lock the storage compartments
separately, e.g. when the vehicle is in the
shop for service.
1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of key hous-
ing (
page 290).
Insert the mechanical key into the
glove box lock and turn it to position3.
The following storage areas will be
locked. They can then not be opened
with the key or with the KEYLESS-GO*
card:
Glove box
Armrest storage spaces
Rear storage compartmentsUnlocking the storage compartments
separately
Turn the mechanical key in the glove
box lock to position1.
You can now open the storage com-
partments.
Parcel net in passenger footwell
iThe separate locking status of these
storage compartments can only be
canceled by means of the mechanical
key.
The storage compartments in the doors
cannot be locked.
Warning!
G
Do not place heavy or fragile objects, or ob-
jects having sharp edges, in the parcel net.
In an accident, during hard braking or sud-
den maneuvers, they could be thrown
around inside the vehicle, and cause injury
to vehicle occupants.
Page 291 of 376

291 Practical hints
Locking/unlocking in an emergency
Unlocking the trunk
If you are unable to unlock the trunk with
the key, open the trunk with the mechani-
cal key as follows:Trunk lid lock1Unlocking
Insert the mechanical key into the
trunk lid lock.
Perform the following two steps simul-
taneously:
Turn the key counterclockwise to
position 1.
Pull the trunk lid handle and lift lid.Unlocking interior storage compart-
ments
Locking storage areas in the passenger
compartment include:
the glove box
the storage space under the armrest
the rear storage compartments
If these cannot be unlocked by means of
the key, the KEYLESS-GO* card or the cen-
tral locking button, use the mechanical key
to open the glove box.1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of key hous-
ing (
page 290).
Insert the mechanical key into the
glove box lock and turn it to position 2.
All storage compartments are now un-
locked.
iThe storage space under the armrest
and the rear storage compartments
can only be unlocked using the me-
chanical key at the glove box lock.