Contents
Safety and Security........................... 67
Occupant safety................................... 68
Air bags .......................................... 70
Occupant Classification System ..... 74
Seat belts ....................................... 79
Roll bar ........................................... 83
Children in the vehicle .................... 84
Panic alarm .......................................... 88
Activating ....................................... 88
Deactivating ................................... 88
Driving safety systems ......................... 89
ABS ................................................ 89
BAS ................................................ 91
ESP
®............................................... 91
Electro-hydraulic brake system ...... 94
Anti-theft systems................................ 98
Immobilizer..................................... 98
Anti-theft alarm system .................. 98
Tow-away alarm ........................... 100
Controls in detail............................. 103
Locking and unlocking ....................... 104
SmartKey ..................................... 104
SmartKey with KEYLESS-GO* ...... 108
Checking the batteries in the
SmartKey or SmartKey with
KEYLESS-GO* .............................. 113
Loss of the SmartKey or
SmartKey with KEYLESS-GO* ...... 113
Opening the doors from
the inside ..................................... 113
Opening the trunk ........................ 114
Closing the trunk.......................... 116
Valet locking ................................ 120
Trunk lid emergency release ........ 121
Power closing assist for trunk lid . 121
Automatic central locking ............ 122
Locking and unlocking from
the inside ..................................... 122Seats ................................................. 124
Moving the seats forward and
backward ..................................... 124
Lumbar support ........................... 124
Multicontour backrest*................ 125
Seat heating................................. 126
Seat ventilation* .......................... 128
Memory function ............................... 129
Storing positions into memory ..... 130
Recalling positions from memory. 130
Lighting ............................................. 131
Exterior lamp switch .................... 131
Combination switch ..................... 135
Corner-illuminating front
fog lamps* ................................... 136
Hazard warning flasher ................ 137
Interior lighting ............................ 138
Courtesy lighting .......................... 139
Trunk lamp ................................... 139
99 Safety and Security
Anti-theft systems
The alarm system will also be triggered
when
someone attempts to raise the vehicle
unlocking and opening the driver’s
door, the trunk, or the glove box with
the mechanical key
someone opens a door from the inside
someone opens the trunk lid with the
emergency release buttonArming the alarm system
The alarm system indicator lamp is located
in the locking switch in the upper part of
the center console.
1Alarm system indicator lamp
Lock the vehicle with the SmartKey or
KEYLESS-GO*.
The turn signal lamps flash three times
and an acoustic warning sounds three
times to indicate that the alarm system
is armed.
Alarm system indicator lamp 1 starts
flashing.Disarming the alarm system
Unlock the vehicle with the SmartKey
or KEYLESS-GO*.
The turn signal lamps flash once and an
acoustic warning sounds once to
indicate that the alarm system is
disarmed.
Alarm system indicator lamp 1 goes
out.
iIf the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 252) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary cellular service and GPS coverage are
available.
iIf the turn signal lamps do not flash three
times and no acoustic warning sounds three
times, a door or the trunk lid may not be properly
closed.
Close the respective element and lock the
vehicle again.
iThe alarm system will rearm automatically
again after approximately 40 seconds if no door
was opened.
116 Controls in detail
Locking and unlocking
Opening the trunk from the inside
Vehicles without trunk opening/closing
system*
1Remote trunk opening switch
2Indicator lamp
Pull switch1 until the trunk begins to
open.
The trunk lid unlocks. Indicator
lamp2 comes on and remains lit until
the trunk is closed again.
Lift the trunk lid.Vehicles with trunk opening/closing
system*
1Remote trunk opening/closing* switch
2Indicator lamp
Pull and hold switch1 until the trunk
unlocks and begins to open.
Indicator lamp2 comes on and re-
mains lit until the is trunk closed again.
Release switch1.
To interrupt the opening procedure:
Press or pull switch1.
Closing the trunk
!The trunk lid swings open upwards automat-
ically. Always make sure that there is sufficient
overhead clearance.
Warning!G
Make sure the trunk is closed when the
engine is running and while driving.
Among other dangers, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
iWhen the hardtop is retracted, it must be
completely lowered in the trunk before the trunk
can be closed (
page 204).
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
iIf the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it. All turn signal lamps flash three times
and an acoustic signal sounds three times to
confirm locking.
117 Controls in detail
Locking and unlocking
Closing the trunk from the outside
manually
1Handle
Lower trunk lid by pulling firmly on
handle1.
Close trunk lid with hands placed flat
on trunk lid.
The power closing assist automatically
ensures that the lid is pulled closed
completely (
page 121).Closing the trunk from the inside
automatically*
Vehicles with KEYLESS-GO*: To prevent a possi-
ble inadvertent lockout, the trunk will open auto-
matically if a SmartKey with KEYLESS-GO is
recognized inside the vehicle or in the trunk.
The vehicle is only locked when the turn signals
flash three times and an acoustic signal sounds
three times. If you are carrying a second
SmartKey with KEYLESS-GO with you, you can
still lock the vehicle.
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 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. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
Warning!G
Maintain sight of trunk area while operating
door mounted 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 again.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
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. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
118 Controls in detail
Locking and unlocking
In vehicles with trunk opening/closing
system* you can close the trunk from
the inside using the remote trunk
opening/ closing* switch.
1Remote trunk opening/closing* switch
(vehicles with trunk opening/closing
system*)
2Indicator lamp
Press and hold switch1 until the
trunk is closed.
Indicator lamp2 in the switch goes
out when the trunk is closed.
To interrupt the closing procedure:
Release switch1.Closing the trunk from the outside
automatically*
iIf 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 re-
opens slightly.
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 lid opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
do one of the following:
Press button Š on the SmartKey or
SmartKey with KEYLESS-GO*.
Press the trunk opening/closing*
switch (on the driver’s door).
Press trunk closing switch.
Press the KEYLESS-GO locking/closing
switch*.
Pull the trunk lid handle.
121 Controls in detail
Locking and unlocking
Trunk lid emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the left side of the trunk.
1Emergency release button
Briefly press emergency release
button1.
The trunk lid unlocks and opens
slightly.
Push up the trunk lid to fully open.Illumination of the emergency release
button:
The button flashes for 30 minutes after
opening the trunk.
The button flashes for 60 minutes after
closing the trunk.
Power closing assist for trunk lid
It is not necessary to slam the trunk lid
closed. An electrical power-assisted
mechanism draws the trunk lid closed
quietly and automatically once the trunk
lid has been latched. When the electrical
power-assisted mechanism has stopped,
the trunk can be re-opened.iThe emergency release button unlocks the
trunk while the vehicle is standing still or in
motion.
iThe emergency release button does not un-
lock the trunk if the vehicle battery is discharged
or disconnected.Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
lid opening when closing the trunk.
Be especially careful when small children
are around.
In case of danger, pull the inside or outside
door handle, or press the trunk lid lock.
To prevent personal injury, never actuate
the closing assist mechanism by tampering
with the door or trunk lid latch.
204 Controls in detail
Retractable hardtop
Opening and closing the retractable
hardtop
For safety reasons, the retractable hardtop
can only be opened and closed when the
vehicle is standing still.
Warning!G
To prevent possible accidents, only drive the
vehicle with the retractable hardtop either
completely closed and locked, or fully low-
ered into its storage compartment.
If the retractable hardtop does not com-
pletely open or close, the roof hydraulics will
lose pressure and the retractable hardtop is
lowered
after approximately 7 minutes when the
ignition is switched on
after approximately 15 seconds when
the ignition is switched off
Shortly before the retractable hardtop is
lowered, a warning will sound and in the left
multifunction display you will see K, in
the right multifunction display you will see
the message
Retractable Roof
Lowering
.
Lock the retractable hardtop again before
driving any further (
page 207). Otherwise,
the unlocked hardtop could open while the
vehicle is in motion and cause you to lose
control of the vehicle. You or others could
be injured as a result.
Warning!G
Before operating the retractable hardtop,
make sure there is no danger of anyone
being injured by the moving parts (retract-
able roof, roof frame, and trunk lid) due to in-
attention.
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered.
Serious personal injury may occur.
If potential danger exists, release the re-
tractable hardtop switch. This immediately
interrupts the raising or lowering procedure.
You then can operate the retractable
hardtop switch or press
buttonŒor‹on the SmartKey or
SmartKey with KEYLESS-GO* to raise or
lower the retractable hardtop away from the
danger zone.
205 Controls in detail
Retractable hardtop
Opening/closing with retractable
hardtop switch
Warning!G
When leaving the vehicle, always remove the
SmartKey or 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. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
!Never sit or place heavy objects on the
rear shelf. Doing so could cause damage to the
retractable hardtop and the rear shelf.
!Please keep in mind that weather conditions
can sometimes change rapidly. Make sure to
close the retractable hardtop when leaving the
vehicle. If water enters the vehicle interior,
vehicle electronics could be damaged which is
not covered by the Mercedes-Benz Limited
Warranty.
!When opening and closing the retractable
roof, make sure
there is sufficient clearance for the retract-
able hardtop to move up and for the trunk lid
to move back
the luggage cover is installed, extended and
closed
the trunk is loaded only to the height of the
luggage cover
luggage/cargo does not push up the closed
luggage cover
the trunk lid is closed
the outside temperature is above +5°F
(–15°C)
the roof is dry and clean when opening
Otherwise the retractable hardtop and trunk
as well as other parts of the vehicle could be
damaged.
Warning!G
Before operating the retractable hardtop,
make sure there is no danger of anyone
being injured by the moving parts (retract-
able roof, roof frame, and trunk lid) due to in-
attention.
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered.
Serious personal injury may occur.
If potential danger exists, release retract-
able hardtop switch immediately. This im-
mediately interrupts the raising or lowering
procedure.