Page 95 of 473
94 Controls in detail
In the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
For more information on locking and
unlocking, see “Getting started”
(
page 32) and (page 54).
Locking and unlocking
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and
a removable mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys are a
different color to help distinguish each
SmartKey unit.
The SmartKey provides an extended oper-
ating range. To prevent theft, however, it is
advisable to only unlock the vehicle when
you are in close proximity to it.
The SmartKey centrally locks and unlocks:
the doors
the trunk
the fuel filler flap
SmartKey with remote control
1‹ Lock button
2Š Opening button for trunk
3Mechanical key locking tab
4ΠUnlock button
5Battery check lamp
6Â Panic button* (
page 81).
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Canada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button6.
Page 96 of 473
95 Controls in detail
Locking and unlocking
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. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious injury.
!
To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
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USA only:
This device complies with Part 15 of
the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful
interference, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.
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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 interfer-
ence, and
(2) this device must accept any inter-
ference received, including interfer-
ence 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 open or close the power
windows and the tilt/sliding sunroof
using the SmartKey, see “Summer
opening feature” (
page 241) and
“Convenience closing feature”
(
page 241).
Page 97 of 473
96 Controls in detail
Locking and unlocking
Factory 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 unlocking if:
neither a door nor the trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not
activatedGlobal 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 5 seconds.
Battery check lamp5 (
page 94)
flashes twice.
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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 98 of 473
97 Controls in detail
Locking and unlocking
The SmartKey will then function as follows:
Unlocking driver’s door and fuel filler
flap
Press buttonΠonce.
All turn signal lamps flash once.
An acoustic signal sounds once
(if equipped and feature activated).
The locking knob in the driver’s
door moves up.
The anti-theft alarm system* is dis-
armed.
Global unlocking
Press buttonΠtwice.
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 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 6 seconds un-
til battery check lamp5 (
page 94)
flashes twice.
The SmartKey is set to factory setting
again.
!
If you can no longer lock or unlock the
vehicle with the SmartKey, then either
the batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.
Try second SmartKey.
Check the batteries in the
SmartKey (
page 98) and replace
them if necessary (
page 393).
Use the mechanical key to unlock
the driver’s door (
page 386) and
the trunk (
page 387).
Use the mechanical key to lock the
driver’s door (
page 387) and the
trunk (
page 103).
Have the vehicle battery and the
battery connections checked
(
page 411).
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.
Page 99 of 473
98 Controls in detail
Locking and unlocking
Checking the batteries
Press button‹ orŒ.
Battery check lamp5 (
page 94)
comes on briefly to indicate that the
SmartKey batteries are in order.Unlocking and opening the trunk
You can unlock and open the trunk
separately.
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
Press buttonŠ until trunk lid
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.
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If battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 393).
You can obtain the required batteries
at any authorized Mercedes-Benz
Center.
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If the batteries are checked within
signal range of the vehicle, pressing
the‹ orŒ button will lock or
unlock the vehicle accordingly.
!
The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.
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If the trunk does not open, it is still
locked separately (
page 103).
Page 100 of 473
99 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the
inside. Open door only when conditions
are safe to do so.
1Locking knob
2Inside door handleFront doors
Pull on door handle2 on the
respective front door to open door.
If door was locked, locking knob1 will
move up.
Rear doors
Pull up locking knob1 on the
respective rear door to unlock door.
Pull on door handle2 on the
respective rear door to open door.
Opening the trunk
Opening the trunk from the outside
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
The handle is located above the rear
license plate recess.
1Handle
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If the vehicle has previously been
locked with the SmartKey, opening a
door from the inside will trigger the
anti-theft alarm system*.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
Page 101 of 473
100 Controls in detail
Locking and unlocking
The vehicle must be unlocked.
Pull on handle1.
The trunk opens.
The trunk can also be opened using
buttonŠ on the SmartKey or from its
inside in an emergency, see “Trunk emer-
gency release” (
page 102).Opening the trunk from the inside
You can open the trunk from the inside if
the vehicle is stationary.
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
The remote trunk opening switch is locat-
ed on the driver’s door.
1Remote trunk opening switch with indi-
cator lamp
Press switch1 until the trunk begins
to open.
The indicator lamp in the switch
remains lit as long as the trunk is open.
The trunk can also be opened using
buttonŠ on the SmartKey or from its
inside in an emergency, see “Trunk emer-
gency release” (
page 102).
!
The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.
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If the trunk does not open, it is still
locked separately (
page 103).
!
The trunk lid swings open upwards
automatically. Always make sure there
is sufficient overhead clearance.
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If the trunk does not open, it is still
locked separately (
page 103).
Page 102 of 473
101 Controls in detail
Locking and unlocking
Closing the trunk
1Handle
2Handles
Lower trunk lid by pulling firmly on
handle1 or handles2.
Close trunk lid with hands placed flat
on trunk lid.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk. Be espe-
cially careful when small children are
around.
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.
Warning!G
Only drive with the trunk closed as, among
other dangers such as blocked visibility, ex-
haust fumes may enter the vehicle interior.
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Do not place the SmartKey in the open
trunk. You may lock yourself out.
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If the vehicle was previously centrally
locked, the trunk will lock automatical-
ly after closing it. The turn signals will
flash three times to confirm locking.
