38 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page refer-
ences are located at the end of each seg-
ment.Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk lid
3ŒUnlock button
4ÂPanic button
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
The electro-hydraulic brake system is
activated.
Enter the vehicle and insert the
SmartKey in the starter switch.
For more information, see “SmartKey”
(
page 102).Warning!
G
When leaving the vehicle, always remove the
SmartKey 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. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.i
Opening 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.
39 Getting started
Unlocking
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.
The function of the SmartKey overrules the
KEYLESS-GO function.
Grasp an outside door handle.
All turn signal lamps flash once. The
locking knobs on the doors move up.
The anti-theft alarm system is dis-
armed.
The electro-hydraulic brake system is
activated.
If the SmartKey with KEYLESS-GO is inside
the vehicle, pressing the KEYLESS-GO
start/stop button on the gear selector le-
ver corresponds to turning the SmartKey
to the various starter switch positions
(
page 40).
For more information, see “SmartKey with
KEYLESS-GO*” (
page 105).
Starter switch positions
Warning!
G
When leaving the vehicle, always 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 an accident
and/or serious personal injury.i
To unlock the vehicle, the SmartKey with
KEYLESS-GO must be outside the vehicle, no
further than approx. 3 feet (1 meter) away from
the door.
i
If the vehicle has been parked for more than
72 hours, you must pull an outside door handle
in order to activate the KEYLESS-GO function.
i
Opening 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
SmartKey or the 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
55 Getting started
Driving
Release the brake pedal.
Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the automat-
ic central locking system engages and the
locking knobs drop down.After a cold start, the transmission engag-
es at a higher revolution. This allows the
catalytic converter to reach its operating
temperature earlier.
Switching on headlamps
Low beam headlamps
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch1Off
2Low beam headlamps on
Turn the exterior lamp switch to
position B.
The low beam headlamps come on.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.!
In order to avoid damage to the transmis-
sion:
Wait for the gear selection process to com-
plete before setting the vehicle in motion.
Place the gear selector lever in positionD
orR only when the vehicle is stopped.
!
If you hear a warning signal and the mes-
sage Release parking brake
appears in the
multifunction display when driving off, you have
forgotten to release the parking brake.
Release the parking brake.
!
Do not run cold engine at high engine speed.
Running a cold engine at high engine speed may
shorten the service life of the engine.
!
Simultaneously depressing the accelerator
pedal and applying the brake reduces engine
performance and causes premature brake and
drivetrain wear.
i
You can open a locked door from the inside.
Open door only when conditions are safe to do
so.
You can deactivate the automatic locking using
the control system (
page 162).
63 Getting started
Parking and locking
Locking
Exit the vehicle and close the doors and
the trunk.Locking with the SmartKey
Press the lock button‹on the
SmartKey (
page 38).
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 102).
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.Warning!
G
When leaving the vehicle, always remove the
SmartKey or the 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
i
If you hear a warning signal you have forgot-
ten to turn off the headlamps.
In addition the message
Turn off lights
ap-
pears in the multifunction display.
Switch off the headlamps.
i
Vehicles with KEYLESS-GO*: A warning sig-
nal and the message
Don’t forget your key
remind you not to leave the SmartKey with
KEYLESS-GO* in the vehicle.
i
Opening a door causes the windows on that
side of the car to open slightly. They will return to
the closed position when the door is closed.
105 Controls in detail
Locking and unlocking
Checking the batteries
Press button ‹or Œ.
Battery check lamp5 (
page 102)
comes on briefly to indicate that the
SmartKey batteries are in order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or the
mechanical key to your car insurance
company immediately.
If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote controls and a remov-
able mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are a different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
The function of the SmartKey overrules the
KEYLESS-GO function.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp a door
handle.
i
If battery check lamp5 does not come on
briefly during check, then the SmartKey batter-
ies are discharged.
Replace the batteries (
page 395).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing the‹orŒ
button will lock or unlock the vehicle according-
ly.
107 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 102).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the ‹button).
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.
To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
trunk.
In order to start the engine with the
SmartKey with KEYLESS-GO:
The SmartKey with KEYLESS-GO
must be located in the vehicle.
All doors must be closed.
The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.
If you have started the engine with the
KEYLESS-GO start/stop button
(page 40), you can only turn it off
again with this button, even if you have
put the SmartKey in the starter switch
in the meantime.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
You can also close the power windows
(
page 196) and the retractable hardtop using
the SmartKey with KEYLESS-GO (
page 201).
i
When you unlock the vehicle, the
electro-hydraulic brake system is activated.
110 Controls in detailLocking and unlockingGlobal locking using the lock button on
the trunk lid
1Lock button
Press lock button 1 on the trunk lid.
With the trunk and all doors closed, all
turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Checking the batteries
Press button ‹or Œ.
Battery check lamp5 (
page 106)
comes on briefly to indicate that the
SmartKey batteries are in order.Loss of SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO, you should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.
Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key to
your car insurance company immedi-
ately.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
i
Vehicles with KEYLESS-GO*: To prevent a
possible inadvertent lockout, the trunk lid will
open automatically if a SmartKey with
KEYLESS-GO is recognized inside the trunk.
When the hardtop is retracted, it must be com-
pletely lowered in the trunk before the trunk lid
can be closed (
page 242).
i
You can also lock the vehicle using the lock
button on an outside door handle (
page 64).
i
If battery check lamp5 (
page 106) does
not come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 395).
You can obtain the required batteries at any
authorized Mercedes-Benz Center.
i
If the batteries are checked within signal
range of the vehicle, pressing the‹orŒ
button will lock or unlock the vehicle according-
ly.
113 Controls in detail
Locking and unlocking
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 trunk closed.
Release switch1.
To interrupt the opening procedure:
Press or pull switch1.
Closing the trunk Closing trunk from 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 en-
sures that the lid is pulled closed com-
pletely (
page 118).
!
The trunk lid swings open upwards automat-
ically. Always make sure that there is sufficient
overhead clearance.
Warning!
G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.i
When the hardtop is retracted, it must be
completely lowered in the trunk before the trunk
can be closed (
page 199).
i
Do not place the SmartKey in the open
trunk. You may lock yourself out.
i
If the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it. All turn signal lamps flash three times
to confirm locking.
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. If you are carrying a second
SmartKey with KEYLESS-GO with you, you can
still lock the vehicle.