359 Controls in detail
Locking and unlocking
Find the SmartKey with KEYLESS-GO or
change its present location immediate-
ly (e.g. place it on the front passenger
seat or insert it in shirt pocket).
If you have started the engine with the
KEYLESS-GO start/stop button, you
can turn it off again with:
the KEYLESS-GO start/stop button
the SmartKey with KEYLESS-GO in-
serted in the starter switch, when
the automatic transmission is in
park positionP
Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle.
Possibility 1: (One SmartKey with
KEYLESS-GO in the vehicle, one
SmartKey with KEYLESS-GO outside
the vehicle):
If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, no message
appears in the multifunction display.
Possibility 2: (One SmartKey with
KEYLESS-GO in the vehicle, no
SmartKey with KEYLESS-GO outside
the vehicle):
When exiting and trying to lock the ve-
hicle, the message “Key Detected In
Vehicle” appears in the multifunction
display. The vehicle will not be locked.Factory setting
1Outside door handle
i
When unlocking or locking the vehicle with
the SmartKey with KEYLESS-GO an acoustic sig-
nal sounds. The acoustic signal is activated at
the factory. If you wish to deactivate the feature,
or adjust its signal volume, contact an authorized
Mercedes-Benz Center.
360 Controls in detailLocking and unlocking
Global unlocking: Grasp an outside
door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and rearm the anti-theft alarm system
within approximately 40 seconds of un-
locking if:
neither a door nor the trunk is opened
the central locking/unlocking switch is
not activated
Global locking: Close both doors and
touch outside of door handle1. Do
not keep your hand in the door handle
recess.
With the trunk and both doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you, grasp the driv-
er’s outside door handle only the driver’s
door and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 356)
flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel fill-
er flap: Grasp the driver’s outside door
handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is dis-
armed.
i
The vehicle could inadvertently be unlocked
if the SmartKey with KEYLESS-GO is within 3 ft
(1 m) of the vehicle and:
an outside door handle is splashed with
water, or
you attempt to clean an outside door handle.
i
You can also lock the vehicle using the
KEYLESS-GO locking/closing switch
(
page 503).
361 Controls in detail
Locking and unlocking
Global unlocking: Grasp the passen-
ger outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Global locking: Close both doors and
touch outside of door handle1
(page 359). Do not keep your hand in
the door handle recess.
With the trunk and both doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting: Press
and hold buttonsŒ and‹ si-
multaneously for about 5 seconds until
battery check lamp5 (
page 356)
flashes twice.
Checking batteries in the SmartKey or
SmartKey with KEYLESS-GO*
Press button‹ orŒ.
The battery check lamp (
page 352)
or (
page 356) comes on briefly to in-
dicate that the SmartKey or SmartKey
with KEYLESS-GO batteries are in or-
der.Loss of the SmartKey or SmartKey with
KEYLESS-GO*
If you lose your SmartKey, SmartKey with
KEYLESS-GO or mechanical key, you
should do the following:
Have the SmartKey or SmartKey with
KEYLESS-GO deactivated by an autho-
rized Mercedes-Benz Center.
Report the loss of the SmartKey,
SmartKey with KEYLESS-GO or the me-
chanical key immediately to your car
insurance company.
Have the mechanical lock replaced if
necessary.
Any authorized Mercedes-Benz Center will
be glad to supply you with a replacement.
i
You can also lock the vehicle using the
KEYLESS-GO locking/closing switch
(
page 503).
!
If the battery check lamp does not come on
briefly during check, the SmartKey or SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries (
page 686).
You can obtain the required batteries at any au-
thorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing button‹ or
Œ will lock or unlock the vehicle accordingly.
362 Controls in detailLocking and unlockingOpening 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
Pull on door handle2 on the respec-
tive door to open door.
If the door was locked, locking knob1
will move up.
i
When you open a door, the side window on
that side lowers slightly. Once you close the
door, the window moves up again.
i
If the vehicle has been locked with 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 following:
Insert the SmartKey or SmartKey with
KEYLESS-GO* in the starter switch.
Press button Œ or ‹ on the SmartKey
or SmartKey with KEYLESS-GO*.
In vehicles with KEYLESS-GO*:
Grasp 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 366).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.
i
If you hear a warning signal you have forgot-
ten to switch off the low beam headlamps or the
parking lamps before opening the driver’s door.
In addition the message “Please Switch Off
Lights” appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message “Turn Lights Off or Remove Key”
appears in the multifunction display remove the
SmartKey from the starter switch or switch off
the automatic headlamp mode.
!
Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.
365 Controls in detail
Starter switch positions
Starter switch positions
SmartKeyStarter switch
0For removing SmartKey
1Power supply for some electrical con-
sumers
2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 608).
3Starting position
For information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 407).
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 unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.
!
If you turn off the engine using the
SmartKey and
remove the SmartKey from the starter
switch
or
open a door
the transmission will shift to park positionP
automatically.
Keep in mind that turning off the engine with the
SmartKey alone only will automatically shift the
transmission to neutral positionN.
!
If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.
Check the battery and charge it if necessary
(page 702).
Have the vehicle jump-started (
page 707).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.
367 Controls in detail
Starter switch positions
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power for some electrical
consumers.Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 608).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 407).
i
If you now press the KEYLESS-GO
start/stop button
once again, the ignition (position2) is
switched on
twice, the power supply is again switched off
i
If you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
i
When you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.
!
If you turn off the engine using the
KEYLESS-GO start/stop button and open the
driver’s or passenger door, the transmission will
shift to park positionP automatically.
Keep in mind that turning off the engine using
the KEYLESS-GO start/stop button alone only
will automatically shift the transmission to
neutral positionN.
391 Controls in detail
Lighting
Lighting
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.
i
If you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Center.
i
The active Bi-Xenon headlamps monitor
your steering angle and driving speed, then auto-
matically shift their beams to either side to bet-
ter follow the curvature of the road ahead,
increasing usable illumination over conventional
headlamps.
1‚
Standing lamps, left (turn left two
stops)
2ˆ
Standing lamps, right (turn left
one stop)
3M
Off
Daytime running lamp mode
(page 393)
4*
Automatic headlamp mode
Daytime running lamp mode
(page 393)
5C
Parking lamps (also tail lamps, li-
cense plate lamps, side marker
lamps, instrument panel lamps)
6B
Low beam headlamps or high
beam headlamps
7‡
Front fog lamps
8†
Rear fog lamp
i
If you hear a warning signal you have forgot-
ten to switch off the low beam headlamps or the
parking lamps before opening the driver’s door.
In addition the message “Please Switch Off
Lights” appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message “Turn Lights Off or Remove Key”
appears in the multifunction display remove the
SmartKey from the starter switch or switch off
the automatic headlamp mode.
!
Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.
396 Controls in detailLightingSwitching on corner-illuminating lamps
Switch on the left or right turn signal
(page 391), depending on whether
you are turning left or right.
or
Turn steering wheel in desired direc-
tion.
The corner-illuminating lamp on the
side of your steering direction comes
on.
Switching off the corner-illuminating
lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the
corner-illuminating lamps if they were acti-
vated by switching on the left or right turn
signal.If the turn signal should stay on after mak-
ing the turn, the turn signal and corner-illu-
minating lamp can be switched off by
returning the combination switch to its
original position.
i
If you have switched on the turn signal for
one side but turn the steering wheel in the other
direction, the corner-illuminating lamp comes on
for the side indicated by the turn signal.
i
The corner-illuminating lamps temporarily
come on, on both sides of the vehicle if you turn
the steering wheel in one direction and then in
the other direction shortly thereafter.
i
The corner-illuminating lamps will come on
automatically depending on the steering angle,
even if you did not switch on either turn signal. If
the corner-illuminating lamps came on automat-
ically, they will also go out automatically depend-
ing on the steering angle.
i
When you shift the automatic transmission
in reverse gearR, the corner-illuminating lamp
opposite to your steering direction comes on.
The turn signal has no influence on the corner-il-
luminating lamp on the outside of the curve.
i
If you are driving faster than 43 mph
(70 km/h) when activating the turn signal indica-
tor, the corner-illuminating lamp function is
switched off.
i
The corner-illuminating lamp may remain lit
for a short time. The corner-illuminating lamp
comes on for no more than 20 seconds with the
vehicle standing still. It is then switched off even
if the turn signal is still switched on or you have
turned the steering wheel to full lock.