Page 53 of 394

53 Getting started
Parking and locking
1Lock button on the door handle
After exiting the vehicle, press lock
button1 on the door handle or on the
trunk lid.
The locking knobs on the doors move
down. The turn signal indicators light
up briefly.More information can be found in the
“Controls in detail” section (
page 84).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure that there
is no possibility of someone getting caught
in a door during closing.iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the
SmartKey with KEYLESS-GO* (if so
equipped) with you, and lock your vehicle.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
Page 80 of 394

80 Safety and SecurityAnti-theft systemsAnti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the trunk
the hood.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
the vehicle is opened with the mechan-
ical key.Arming the alarm system
The alarm system is armed after locking
the vehicle with the remote control or
KEYLESS-GO*. The turn signal lamps blink
three times to indicate that the alarm sys-
tem is activated. The indicator lamp in the
switch for the tow-away alarm will blink af-
ter approximately 10 seconds when the
alarm system is completely armed
(
page 25).Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the remote con-
trol or KEYLESS-GO*. The turn signal
lamps blink once to indicate that the alarm
system is deactivated
Canceling the alarm
To cancel the alarm:
With the key
Insert the key in the starter switch.
or
Press the
Œ
or
‹
button.
With KEYLESS-GO*
Grasp the outside door handle.
or
Press the KEYLESS-GO* start/stop
button.
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem provided Tele Aid service was
subscribed to and properly activated.
iIf the turn signal lamps do not blink
three times one of the following ele-
ments may not be properly closed:
a door
the trunk lid
the hood
Close the respective element and lock
the vehicle again.
Page 85 of 394

85 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press button
Œ
.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk is opened,
if the SmartKey is not inserted in the start-
er switch, or if the central locking switch is
not activated.
Global locking
Press button
‹
.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.Selective setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressing
Œ
only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttons
Œ
and
‹
simultaneously for about five seconds
until battery check lamp5 blinks twice.
The key will then function as follows:
Unlocking driver’s door and fuel filler
flap
Press button
Œ
once.
Global unlocking
Press button
Œ
twice.
Global locking
Press button
‹
.Restoring to factory setting
Press and hold buttons
Œ
and
‹
simultaneously for about six seconds
until battery check lamp5 blinks twice.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.
Warning!
G
When leaving the vehicle always remove the
key from the starter switch, take the Smart-
Key with KEYLESS-GO* (if so equipped) with
you and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. It is possible for
children to open a locked door from the in-
side, which could result in an accident
and/or serious personal injury.
Page 86 of 394

86 Controls in detailLocking and unlocking
Checking the batteries
Press button
‹
or
Œ
.
Battery check lamp5 lights up briefly
to indicate that the key batteries are in
order.Unlocking the trunk lid
You can unlock the trunk separately.
Press and hold button
Š
until trunk
unlocks.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged or the key is malfunctioning.
Check the batteries in the key and
replace them if necessary
(page 312).
or
Use the mechanical key to unlock
the doors (
page 310) and trunk
(
page 311) as required. Lock the
vehicle using the mechanical key
(page 311).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If battery check lamp5 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
page 312).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.iIf the vehicle was previously centrally
locked with the SmartKey, the trunk lid
will lock automatically after closing it.
The turn signals will flash three times to
confirm locking.
If the trunk lid was previously separate-
ly locked (
page 94), the trunk lid will
remain locked.
Page 90 of 394

90 Controls in detailLocking and unlockingGlobal locking
Press lock button at door handle
(page 53) or trunk lid (
page 91).Unlocking the trunk lid
The handle is located in the rear license
plate recess.
Pull on the handle and lift up the trunk
lid.
The vehicle unlocks the trunk lid only.
If the trunk lid does not open, it is still
locked separately (
page 95).The trunk can also be opened from the in-
side in an emergency, see “Trunk lid emer-
gency release” (
page 93).
!If you cannot lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then either the batteries of the key are
discharged or the key is malfunction-
ing.
Check the batteries of the Smart-
Key with KEYLESS-GO (
page 86)
and replace them if necessary
(
page 312).
Use the mechanical key to unlock
the driver’s door (
page 310) and
trunk lid (
page 311) as required.
Lock the vehicle using the mechan-
ical key (
page 311).
If your SmartKey with KEYLESS-GO is
malfunctioning, contact your autho-
rized Mercedes-Benz Center.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
iIf the vehicle was previously centrally
locked with the SmartKey, the trunk lid
will lock automatically after closing it.
The turn signals will flash three times to
confirm locking.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized in the area of the rear shelf
or inside the trunk.
Page 105 of 394

105 Controls in detail
Lighting
Lighting
For notes on how to switch on the head-
lamps and use the turn signals, see the
“Getting started” section (
page 46).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.
M
Off
U
Automatic headlamp mode
C
Parking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
Canada only: When engine is run-
ning, the low beam is also switched
on.
B
Low beam plus parking lamps or
high beam headlamps (combination
switch pushed forward).
ˆ
Standing lamps, right (turn left one
stop)
‚
Standing lamps, left (turn left two
stops)
iIf you remove the key and open the
driver’s door while the parking lamps or
low beam headlamps are switched on,
then
a warning sounds
$
appears in the multifunction
display
the message
Turn off lamps!
ap-
pears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
Page 108 of 394

108 Controls in detailLightingSwitching on high beams
Turn exterior lamp switch to
position
B
or to
U
(
page 105).
Push the combination switch in
direction1.
The high beam symbol is illuminated on
the instrument cluster.
High beam flasher
Pull the combination switch briefly in
direction2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition switched on or off. It is
activated automatically when an airbag is
deployed.
The switch is located on the center con-
sole.
1Hazard warning flasher switchSwitching on the hazard warning
flasher
Press the hazard warning flasher
switch.
All turn signals will blink.
Switching off the hazard warning
flasher
Press hazard warning flasher switch
again.iWith the hazard warning flasher acti-
vated and the combination switch set
for either left or right turn, only the re-
spective left or right turn signals will
operate when the key in the starter
switch is in position1 or2.iIf the hazard warning flasher has been
activated automatically, press the haz-
ard warning flasher switch twice.
Page 199 of 394

199 Controls in detail
Driving systems
Distronic menu in the control system
In the Distronic menu you can read the cur-
rent settings for Distronic. What appears in
the display depends on whether Distronic
and the distance warning function are
turned on or off.
Press button
è
or
ÿ
repeatedly
until you see one of the following dis-
plays.
Warning!
G
An intermittent warning sounds and the
DTR warning lamp in the instrument cluster
is illuminated if the Distronic system calcu-
lates that the distance to the vehicle ahead
and your vehicle’s current speed indicate
that Distronic will not be capable of slowing
the vehicle sufficiently to maintain the pre-
set following distance, which creates a dan-
ger of a collision.
Immediately brake the vehicle to increase
the distance to the vehicle in front of you.
The warning sound is intended as a final cau-
tion that you have not interceded with your
own braking inputs to avoid a potentially
dangerous situation. Do not wait for the op-
eration of the warning signal to intercede
with your own braking, as that will result in
potentially dangerous emergency braking
which will not always result in an impact be-
ing avoided.
Tailgating increases the risk of an accident.
Warning!
G
Distronic brakes your vehicle with a maxi-
mum of 6.5 ft/s
2 (2 m/s
2). This corre-
sponds to about 20% of the maximum
deceleration ability of your vehicle.
Distronic brakes the vehicle in an effort to
restore the preset distance or to maintain
the speed. The brake pedal is automatically
applied as this happens which results in the
brake pedal moving.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the Distronic system.
Do not place your foot under the brake pedal
– your foot could become caught.