30 At a glanceMultifunction steering wheel
Item
Page
1
Left multifunction display in
the speedometer
139
2
Right multifunction display
in the tachometer
139
Operating the control sys-
tem
140
3
Selecting the submenu or
setting the volume:
Press buttonçdown/to decreaseæup/to increase
4
Telephone*:
Press buttonsto take a calltto end a call
Item
Page
5
Menu systems:
Press buttonÿfor previous menuèfor next menu
6
Moving within a menu:
Press buttonjfor next displaykfor previous display
32 At a glanceCenter consoleLower part
Item
Page
1
Gear selector lever for
automatic transmission
173
2
Parktronic system*
deactivation switch
228
3
Exterior rear view mirror
adjustment
47
4
ABC suspension tuning
button
225
5
Tow-away alarm switch
98
6
Retractable hardtop
open/close switch with
buttons for roll bar
199,
81
Item
Page
7
ABC vehicle level control
button
225
8
ESP
® switch
91
9
Thumbwheel for setting fol-
lowing distance for
Distronic*
221
a
Distance warning function*
on/off switch
224
b
Program mode selector
switch for automatic trans-
mission
177
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.
48 Getting startedAdjustingInterior rear view mirror
Manually adjust the interior rear view
mirror.
For more information, see “Rear view mir-
rors” (
page 180).
Exterior rear view mirrorsThe buttons are located on the lower part
of the center console.
1Driver’s side exterior rear view mirror
button
2Passenger-side exterior rear view mir-
ror button
3Adjustment button
Switch on the ignition (
page 39).
Press button1 or button2 to select
the desired exterior rear view mirror.
Push adjustment button3 up, down,
left, or right according to the desired
setting.For more information, see “Good visibility”
(
page 180).
Warning!
G
Exercise care when using the passenger
side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
terior rear view mirror or glance over your
shoulder before changing lanes.
!
If an exterior rear view mirror was forcibly
pushed forward (hit from the rear) or forcibly
pushed rearward (hit from the front), reposition
it by applying firm pressure until it snaps into
place. The mirror housing is then properly posi-
tioned and you can adjust the mirror in the usual
manner.
i
At low ambient temperatures, the exterior
rear view mirrors will be heated automatically.
i
The memory function (
page 126) lets you
store the setting for the exterior rear view mir-
rors together with the settings for the steering
wheel and the seat position.
81 Safety and Security
Occupant safety
Emergency tensioning device (ETD),
seat belt force limiter
The seat belts are equipped with emergen-
cy tensioning devices and belt force
limiters.
The ETD is designed to activate in the fol-
lowing cases:
in frontal or rear-end impacts exceed-
ing the system deployment threshold
if the restraint systems are operational
and functioning correctly, see 1 in-
dicator lamp (
page 66)
in certain vehicle rollovers if the sys-
tem determines an additional degree of
protectionWhen activated, emergency tensioning de-
vices remove slack from the belts in such a
way that the seat belts fit more snugly
against the body. Belt force limiters reduce
the force exerted by the seat belts on oc-
cupants during a crash.
Automatic comfort-fit feature seat belt
The automatic comfort-fit feature reduces
the retracting force of the seat belts when
they are in normal use.
Roll bar
i
The ETDs will only activate if the seat belts
are fastened (latch plate properly inserted into
buckle).
Warning!
G
An emergency tensioning device (ETD) that
was activated must be replaced.
When disposing of the emergency tension-
ing device, our safety instructions must be
followed. These are available at your autho-
rized Mercedes-Benz Center.
Warning!
G
This vehicle is a two occupant vehicle. The
rear storage area is not intended for use by
occupants and is not equipped for properly
seating or restraining occupants. Thus this
area should never be used by any persons.
Before operating the roll bar switch make
sure that the roll bar’s path is clear and no
persons are injured by the moving roll bar
due to inattention. Raising or lowering of the
roll bar could injure someone in it’s proximi-
ty.
For your own safety, we recommend to drive
with the roll bar raised if the outside temper-
ature is below +5°F (-15°C).!
If the outside temperature falls below +5°F
(-15°C), the roll bar must be raised manually us-
ing the buttons provided to avoid damaging the
hydraulics.
82 Safety and SecurityOccupant safetyThe roll bar raises automatically in an acci-
dent or in a critical driving situation. You
can also raise and lower the roll bar manu-
ally using the buttons provided.
The buttons for the roll bar are on the cen-
ter console under the retractable hardtop
switch.
1Raise roll bar
2Lower roll bar
The roll bar can be moved manually when
the ignition is switched on (
page 39).Raising the roll bar
Lift the switch for the retractable hard-
top.
Press and hold button1 until the roll
bar is raised.Lowering the roll bar
Lift the switch for the retractable hard-
top.
If the roll bar was raised manually:
Press and hold button2 until the roll
bar is lowered.
If the roll bar was raised automatically:
Press and hold button1 until you hear
the roll bar lock into place.
Press and hold button2 until the roll
bar is lowered.
i
When the roll bar is raised automatically,
you will hear a ratcheting sound.
Warning!
G
If the roll bar warning light in the ta-
chometer remains lit after starting the en-
gine, there is a malfunction. In the display
you see the message
Raise roll-over
bar
.
For safety reasons, drive only with the roll
bar upright until the malfunction is repaired.
Have your vehicle checked at an authorized
Mercedes-Benz Center.
i
If you have raised the roll bar manually using
the button, the roll bar will automatically be low-
ered and then raised again when you close and
open the retractable hardtop.
104 Controls in detailLocking and unlockingSelective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door, interior lockable storage compart-
ments and the fuel filler flap.
Press and hold buttons Œ and
‹simultaneously for about
6 seconds until battery check lamp5
flashes twice.
The SmartKey will then function as fol-
lows:
Unlocking driver’s door and fuel filler
flap
Press button Œ once.
All turn signals flash once. The locking
knob in the driver’s door moves up.
The anti-theft alarm system is disarmed.Global unlocking
Press button Œ twice.
All turn signals flash once. The locking
knobs in the doors move up. The anti-theft
alarm system is disarmed.
Global locking
Press button ‹.
All turn signals flash three times. The lock-
ing knobs in the doors move down.
The anti-theft alarm system is armed.
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 6 seconds
until battery check lamp5
(page 102) flashes twice.
!
If you can no longer lock or unlock the vehi-
cle with the SmartKey, then the batteries in the
SmartKey are discharged, the SmartKey is mal-
functioning or the vehicle battery is drained.
Check the batteries in the SmartKey
(page 105) and replace them if necessary
(page 395).
Use the mechanical key to unlock the driv-
er’s door (
page 391) and the trunk
(
page 117).
Have the vehicle batteries and their connec-
tions checked (
page 414).
Use the mechanical key to lock or unlock the
doors (
page 393).
If the SmartKey is malfunctioning, contact an
authorized Mercedes-Benz Center.
106 Controls in detailLocking and unlockingIf the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks
the doors
the trunk lid
the glove box
the storage compartment under the
armrest
the storage compartment in the rear
the fuel filler flap
SmartKey with KEYLESS-GO1‹Lock button
2Š Opening button for trunk
(
page 111)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6Â Panic button (
page 86)
For information on using the SmartKey
buttons, see “SmartKey” (page 102).
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.!
To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
i
USA only: This device complies with Part 15
of the FCC Rules. Operation is subject to the fol-
lowing two conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.