Page 55 of 458
53 Getting started
Driving
Turn signals
The combination switch is located on the
left of the steering column.Combination switch1Turn signals, right
2Turn signals, left
Press the combination switch up1 or
down2.
The corresponding turn signal indicator
lampL orK flashes in the in-
strument cluster (
page 24).The combination switch resets automati-
cally after major steering wheel move-
ments.
iTo signal minor directional changes,
e.g. passing or changing lanes, move
combination switch to point of resis-
tance only and release. The turn signal
flashes three times.
Page 61 of 458

59 Getting started
Parking and locking
Switching off headlamps
Turn the exterior lamp switch toM
(page 52).
For more information, see “Exterior lamp
switch” (page 125).
Turning off the engine
Place the gear selector lever in
positionP.
Turning off with the SmartKey
Turn the SmartKey in the starter switch
(page 34) to position0 and remove
it.
The immobilizer is activated.
Press the seat belt release button
(page 47).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
Turning off the engine with
KEYLESS-GO*
Place the gear selector lever in
positionP.
Press the KEYLESS-GO start/stop but-
ton (
page 35) to shut off the engine.With the driver's door closed, the start-
er switch is now in position1. With the
driver’s door opened, the starter switch
is set to position0, same as SmartKey
removed from starter switch
(
page 34).
Press the seat belt release button
(page 47).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
iAlways set the parking brake in addi-
tion to shifting to position P.
On slopes, turn the front wheels to-
wards the curb.
iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.iWith the SmartKey removed and the
driver’s door open, a warning sounds if
the vehicle’s exterior lamps are not
switched off.
!If you hear a warning signal, you have
either
forgotten to turn off the lights be-
fore opening the driver’s door
or
tried to turn off the engine while the
gear selector lever is not inP.
Turn off the lights or place the gear se-
lector lever inP.
Page 62 of 458

60 Getting startedParking and lockingLocking
Locking with the SmartKey
After exiting the vehicle press the lock
button‹ on the SmartKey
(page 32).
All turn signal lamps flash three times.
The locking knobs on the doors move
down.
For more information, see “SmartKey”
(
page 90).Locking with KEYLESS-GO*
1Lock button on the outside door handle
After exiting the vehicle, press lock
button1 on the outside door handle
or on the trunk lid (
page 99).
All turn signal lamps flash three times.
The locking knobs on the doors move
down.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 94).
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 there is no
possibility of someone getting caught in a
door during closing.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. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
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.
Page 88 of 458

86 Safety and SecurityAnti-theft systemsArming the alarm system
The indicator lamp located in the central
locking switch in on the upper part of the
front center console.
1Indicator lamp
Lock your vehicle.
The turn signal lamps flash three times
to indicate that the alarm system is ac-
tivated. The indicator lamp1 flashes
to indicate that the alarm system is
armed.Disarming the alarm system
Unlock your vehicle.
The turn signal lamps flash once to in-
dicate that the alarm system is deacti-
vated.
iIf the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
by the Tele Aid system (
page 243)
provided Tele Aid service was sub-
scribed to and properly activated, and
that necessary cellular service and GPS
coverage are available.
iIf the turn signal lamps does not flash
three times one of the following ele-
ments may not be properly closed:
a door
the trunk
the hood
Close the respective element and lock
the vehicle again.
iThe alarm system will rearm automati-
cally again after approximately 40 sec-
onds if no door was opened.
Page 94 of 458

92 Controls in detailLocking and unlockingFactory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if:
neither door nor trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not acti-
vatedGlobal locking
Press button‹.
All turn signal lamps flash 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 so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp5 flashes
twice.
The SmartKey will then function as fol-
lows:Unlocking 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 dis-
armed.
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 dis-
armed.
Global locking
Press button‹.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
Page 99 of 458

97 Controls in detail
Locking and unlocking
If the SmartKey with KEYLESS-GO is re-
moved from the vehicle while the igni-
tion is switched on (e.g. if passenger
exits the vehicle with the SmartKey
with KEYLESS-GO), the message KEY
NOT RECOGNIZEDwill appear in the multifunction display
while driving off.
Find the SmartKey or change its
present location immediately
(e.g. place it on the front passenger
seat or insert it in shirt pocket).
Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle. If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, the message KEY
STILL IN VEHICLEwill appear in the multifunction display.Factory setting
Global unlocking
Grasp the outside door handle.
All turn signal lamps flash once. The
locking knob in the doors move up. The
anti-theft alarm system is disarmed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if:
neither door nor trunk is opened
the central locking switch is not acti-
vated.Global locking
Press lock button at outside door han-
dle (
page 60) or trunk lid
(
page 99).
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
iIf the vehicle has been parked for more
than 72 hours, you must pull the out-
side door handle in order to activate
the KEYLESS-GO function.
iThe vehicle could inadvertently be un-
locked if the SmartKey with
KEYLESS-GO is within 3 ft. (1 m) of the
vehicle and:
the outside door handle is splashed
with water, or
you attempt to clean the outside
door handle.
Page 100 of 458

98 Controls in detailLocking and unlockingSelective 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 six seconds
until battery check lamp5 flashes
twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap
Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver's door moves
up. The anti-theft alarm system is dis-
armed.Global unlocking
Grasp the outside door handle on the
passenger side.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking
Press lock button at outside door han-
dle (
page 60).
All turn signal lamps flash 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‹
simultaneously for about six seconds
until battery check lamp5 flashes
twice.
iYou can also lock the vehicle using the
lock button at trunk lid (
page 99) or,
vehicles with trunk lid opening/closing
system*, KEYLESS-GO locking/closing
switch (
page 107).
!If you cannot lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then the battery of the SmartKey with
KEYLESS-GO is discharged, the
SmartKey with KEYLESS-GO is mal-
functioning or the vehicle battery is
drained.
Check the battery of the SmartKey
with KEYLESS-GO and replace them
if necessary (
page 371).
Use the mechanical key to unlock
the driver’s door (
page 367) and
the trunk (
page 368).
Use the mechanical key to lock the
driver’s door (
page 367).
Page 101 of 458

99 Controls in detail
Locking and unlocking
Checking the battery
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey with
KEYLESS-GO battery is in order.Global locking using the lock button at
trunk lid
1Vehicle lock button
Press vehicle lock button1.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
Have the vehicle battery and the
battery connections checked
(page 386).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.
!If battery check lamp5 does not
come on briefly during check, the
SmartKey with KEYLESS-GO battery is
discharged.
Replace the battery (
page 371).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the battery is checked within signal
range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
iYou can also lock the vehicle using the
lock button at outside door handle
(page 60) or, vehicles with trunk lid
opening/closing system*,
KEYLESS-GO locking/closing switch
(page 107).