31 Getting started
Unlocking
Starter switch positionsStarter switch0For removing SmartKey
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the SmartKey cannot be turned, the
battery may not be sufficiently
charged.
Check the battery and charge it
if necessary (
page 287).
Get a jump start (
page 378).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
45 Getting started
Driving
Starting difficulties
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey, turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO.
Repeat the starting procedure
(page 43). Remember that extended
starting attempts can drain the battery.
Get a jump start (
page 378).If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Notify an authorized Mercedes-Benz
Center.
Parking brake
1Parking brake pedal
2Parking brake release handle
Release the parking brake by pulling on
handle2.
The warning lamp ; (USA only) or
3 (Canada only) in the clock goes
out.Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could release the
parking brake, which could result in an acci-
dent and/or serious injury.
89 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash 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
the SmartKey is not inserted in the
starter switch
the central locking switch is not acti-
vated
Global locking
Press button‹.
All turn signal lamps flash three times.
The locking knobs in the doors move
down.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.
Global unlocking
Press buttonŒ twice.
Global locking
Press button‹.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. It is possible for children
to open a looked door from the inside, which
could result in an accident or serious injury.!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.iYou can also open and close the power
windows (
page 197) and
sliding / pop-up roof* (
page 201) or
panorama sliding / pop-up roof*
(
page 208) using the SmartKey.
92 Controls in detailLocking and unlockingSmartKey 1‹ Lock button
2Š Unlock button for the trunk lid
3Mechanical key locking tab
4Œ Unlock button
5Battery check lamp
6Â Panic button (
page 73)
For more information on using the
SmartKey buttons, see “SmartKey”
(
page 88).Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 88).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the remote control).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* 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 serious personal
injury.!To prevent possible malfunction, avoid
exposing the SmartKey with
KEYLESS-GO to high levels of electro-
magnetic radiation.iYou can also open and close the power
windows (
page 197) and
sliding / pop-up roof* (
page 201) or
panorama sliding / pop-up roof*
(
page 208) using the SmartKey.
104 Controls in detailLocking and unlockingTrunk lid emergency release
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release
button1.
The trunk unlocks and the trunk lid
opens.
Illumination of the emergency release but-
ton:
The button will flash for 30 minutes af-
ter opening the trunk.
The button will flash for 60 minutes af-
ter closing the trunk.
Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle
interior.
iThe emergency release button unlocks
and opens the trunk while the vehicle is
standing or driving.
The emergency release button does
not open the trunk lid, if the vehicle
battery is discharged or disconnected.
iIf the emergency release button is
pressend and the vehicle was centrally
locked from the outside using the
SmartKey, the exterior lamps will flash
and the alarm will sound as the trunk
lid opens.
To cancel the alarm, do one of the fol-
lowing:
With the SmartKey
Insert the SmartKey in the starter
switch.
Press the Œ or ‹ button on
the SmartKey.
With KEYLESS-GO*
Grasp the outside door handle.
Press the KEYLESS-GO* start/stop
button.
173 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the defrost-
er as soon as the rear window is clear. The
defroster is automatically deactivated af-
ter approximately 6 to 17 minutes of oper-
ation depending on the outside
temperature.
Activating
Press buttonFon the climate con-
trol panel (
page 173) or the automat-
ic climate control panel (
page 176).
The indicator lamp on the button
comes on.Deactivating
Press buttonF again.
The indicator lamp on the button goes
out.
!Always guide the sunblind by hand. Do
not let it snap back, as the retractor
could be damaged.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.
200 Controls in detailPower windowsClosing the side windows with KEY-
LESS-GO*
Press and hold lock button at door
(page 54) until the side windows and
the sliding / pop-up roof or panorama
sliding/pop-up roof* are closed.
Synchronizing power windows
The power window must be resynchro-
nized each time
after the battery has been disconnect-
ed.
if the power windows cannot be fully
opened (Express-open) or closed (Ex-
press-close).
Synchronizing the power windows
Switch on ignition.
Pull the power window switches until
the side windows are closed.
Hold the switches for approximately
one second.
The power windows are synchronized.
Warning!
G
When closing the windows and the
sliding / pop-up roof*, be sure that there is
no danger of anyone being harmed by the
closing procedure.
If potential danger exists, proceed as fol-
lows:
Release the lock button.
Pull on the door handle and hold firmly.
The side windows and the
sliding / pop-up roof* will open for as
long as the door handle is held but the
door not opened.
209 Controls in detail
Panorama sliding / pop-up roof*
Closing the panorama sliding / pop-up
roof with KEYLESS-GO*
The power windows (
page 197) will also
be closed when the panorama
sliding / pop-up roof is operated with
KEYLESS-GO.
Press and hold lock button at driver’s
door (
page 54) until the side win-
dows and the panorama
sliding / pop-up roof are closed.Synchronizing the panorama
sliding / pop-up roof
It is necessary to resynchronize the pan-
orama sliding / pop-up roof after
voltage supply interruption due to a
disconnected or discharged battery
the roof has been closed manually
the roof has been opened with an
abrupt movement
a malfunction.
Remove the fuse from the main fuse
box (
page 385).
Replace the fuse in the main fuse box.
Switch on ignition.
Press the switch in direction2
(page 206).
Warning!
G
When closing the windows and the panora-
ma sliding /pop-up roof, be sure that there is
no danger of anyone being harmed by the
closing procedure.
If potential danger exists, proceed as fol-
lows:
Release the lock button.
Pull on the door handle and hold firmly.
The side windows and the panorama
sliding/pop-up roof will open for as long
as the door handle is held but the door
is not opened.