Page 27 of 491
26 At a glanceMultifunction steering wheel
Item
Page
1
Multifunction display in
speedometer
153
Operating control sys-
tem
154
2
Selecting the submenu or
setting the volume:
Press buttonæup/to increaseçdown/to decrease
3
Telephone*:
Press buttonsto take a call
to dial a calltto end a call
to reject an incom-
ing call
Item
Page
4
Menu systems:
Press buttonèfor next systemÿfor previous system
5
Moving within a menu:
Press buttonjfor next displaykfor previous display
Page 34 of 491

33 Getting started
Unlocking
Get in the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 102).
Unlocking with KEYLESS-GO*
With KEYLESS-GO your can open your
vehicle without using the buttons on the
SmartKey.
Pull the outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
For more information, see “Factory
setting” (
page 110).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Get in the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 107).
iThe SBC brake system is activated.iTo unlock the vehicle, the SmartKey
with KEYLESS-GO must be outside the
vehicle, no further than approximately
3 feet (1 meter) away from the door.
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.
iThe SBC brake system is activated.
Page 43 of 491
42 Getting startedAdjustingInterior rear view mirror
Manually adjust the interior rear view
mirror.
For more information, see “Rear view mir-
ror” (page 191).
Exterior rear view mirrorThe buttons are located on the driver’s
door.
1Passenger-side exterior rear view mir-
ror button
2Adjustment button
3Driver’s side exterior rear view mirror
button
Switch on the ignition (
page 34).
Press button3 for the driver’s side ex-
terior rear view mirror or button1 for
the passenger-side exterior rear view
mirror.
Push adjustment button2 up, down,
left or right according to the setting
desired.
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.
Page 105 of 491

104 Controls in detailLocking and unlockingFactory settingGlobal unlocking
Press buttonŒ.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
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.
An acoustic signal sounds three
times if equipped and feature acti-
vated).
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:
iDepending on production date, your
vehicle may be equipped with an
acoustic lock and unlock confirmation
signal feature. If your vehicle is
equipped with this feature and the fea-
ture is activated, an acoustic signal will
sound when the vehicle is locked or un-
locked using the SmartKey.
To determine whether or not your vehi-
cle is equipped with this feature, con-
tact an authorized Mercedes-Benz
Center. If equipped and you wish to ac-
tivate or deactivate the feature, or ad-
just its signal volume, also contact an
authorized Mercedes-Benz Center.
Page 106 of 491

105 Controls in detail
Locking and unlocking
Unlocking driver’s door and fuel filler
flap
Press buttonŒ once.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
For more information, see “Factory
setting” (
page 104).
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 or
twice.
An acoustic signal sounds once (if
equipped and feature activated).
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.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
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.
!If you cannot lock or unlock the vehicle
with the SmartKey, then the batteries
of the SmartKey are discharged, or the
SmartKey is malfunctioning or the vehi-
cle battery is drained.
Check the batteries of the
SmartKey (
page 112) and re-
place them if necessary
(
page 408).
Use the mechanical key to unlock
the driver’s door (
page 404) as
required.
Have the vehicle batteries and their
connections checked.
Use the mechanical key to lock the
doors (
page 405).
If the SmartKey is malfunctioning, con-
tact an authorized Mercedes-Benz
Center.
Page 107 of 491

106 Controls in detailLocking and unlockingChecking the batteries
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Unlocking and opening the tailgate
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
Press and hold button Š until tail-
gate unlocks and begins to open.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 immediately to your
car insurance company.
If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!If battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 408).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.
!The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system: To stop the opening proce-
dure, press buttonŠ. The tailgate
stops moving.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally when closed.
To confirm locking all turn signal lamps
flash three times.
Page 112 of 491

111 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you pull the driver’s
door handle only the driver’s door and the
fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about five 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
Pull the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
For more information, see “Factory
setting” (
page 110).
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is dis-
armed.
Global unlocking
Pull any outside door handle other than
the driver’s outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once (if
equipped and feature activated).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.Global locking
Press lock button at outside door
handle (
page 60).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
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.
Page 113 of 491

112 Controls in detailLocking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey batter-
ies are in order.Unlocking and opening the tailgate
A minimum height clearance of 6.76 ft
(2.06 m) is required to open the tailgate.
The handle is located in the rear license
plate recess.
You can unlock and open the tailgate sep-
arately.
Pull on the handle.
or
Press and hold buttonŠ until the
tailgate unlocks and opens.
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the batteries of the
SmartKey are discharged, or the
SmartKey is malfunctioning or the vehi-
cle battery is drained.
Check the batteries of the
SmartKey with KEYLESS-GO
(page 112) and replace them if
necessary (
page 408).
Use the mechanical key to unlock
the driver’s door (
page 404) as
required.
Have the vehicle batteries and their
connections checked.
Use the mechanical key to lock the
doors (
page 405).
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, then the
SmartKey batteries are discharged.
Replace the batteries (
page 408).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
iIf the batteries are checked within sig-
nal range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.