38 At a glance
Driver’s door control panel
ItemPage
1Inside door handle333
2Central unlocking switch333
3Central locking switch333
4Memory function (for storing
seat, exterior mirror, and
steering wheel settings)357
5Selector button for front
passenger seat341
6Seat heating
Seat ventilation*346
347
7Seat adjustment339
ItemPage
8Exterior rear view mirror
adjustment
Mirror folding function353
354
9Switches for opening/ closing
side windows374
aRemote trunk opening/clos-
ing switch461
bRear window override switch62
ProCarManuals.com
134 Control systems
COMAND telephone*
Switching the hands-free microphone
on or off
Switching screen to telephone
mode: Call up main telephone menu
(
page 127).
Switching off microphone:
Select “Mic OFF” and press n.
or
Press F shortcut button.
If the microphone is switched off,
the> symbol appears in the main ar-
ea.
Switching on microphone:
Select “Mic ON”.
or
Press F shortcut button.
The> symbol disappears.Sending a character string via DTMF
Answering machines or other devices can
be controlled by character strings (e.g. for
remote query functions).
Sending character strings via the DTMF
menu
During a call, select “DTMF”.
The DTMF dialing display appears.
iThe name of the person you are speaking
with can only be seen in display 7 if his or her
telephone number and name have been saved in
the COMAND address book or phone book on
the mobile phone. The telephone number must
also be saved in the same way in which the per-
son you are talking to transmits it.
iThis function is not possible with every mo-
bile phone. If the mobile phone supports the
function, you can use it during the call connec-
tion and also during a call.
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322 Controls in detail
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 of differ-
ent 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,
when set to factory settings (
page 324):
the doors
the trunk
the fuel filler flap
SmartKey with remote control
1‹ Lock button
2ŠOpening button for trunk
(
page 461)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6ÂPanic button (
page 63)
!To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic radiation.
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. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk lid opening when closing a door or
the trunk. Be especially careful when small
children are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
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326 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are of different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
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 an outside
door handle.
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.If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks:
the doors
the trunk
the fuel filler flap
SmartKey with KEYLESS-GO
1‹ Lock button
2ŠOpening button for trunk
(
page 461)
3Locking tab for mechanical key
4Œ Unlock button
5Battery check lamp
6ÂPanic button (
page 63)
!To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
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. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
Children could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the
vehicle or with the KEYLESS-GO button on
the starter switch, or could release the
electronic parking brake, thereby putting
themselves and others in danger. Switch off
the engine and take the SmartKey with
KEYLESS-GO with you even if you are only
leaving the vehicle for a short while.
ProCarManuals.com
376 Controls in detail
Power windows
Stopping during Express-operation:
Briefly press the respective power win-
dow switch again.
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:
opening the side windows
opening the tilt/sliding sunroof
turning on the seat ventilation* for the
driver’s seat
Aim transmitter eye of the SmartKey or
SmartKey with KEYLESS-GO* at the
driver’s outside door handle. The
SmartKey or SmartKey with
KEYLESS-GO* must be in close proxim-
ity to the driver’s door handle.
Press and hold button Œ until the
side windows and tilt/sliding sunroof
have reached the desired position.The vehicle unlocks.
Release button Œ to interrupt pro-
cedure.
Convenience closing feature
When you lock the vehicle, you can close
the side windows and tilt/sliding sunroof
simultaneously.
!If the upward movement of a door window is
blocked during the closing procedure, the door
window will stop and open slightly.
Remove the obstruction, press the respective
power window switch at the upper part again
past the resistance point and release.
If the door window still does not close when
there is no obstruction, press and hold the re-
spective power window switch at the upper part.
The door window will then close without the ob-
struction sensor function.iThe “Summer opening” function can only be
activated via the remote control of the SmartKey
or SmartKey with KEYLESS-GO*.
iThe seat ventilation* for the driver’s seat is
automatically set to the highest level if activated
via summer opening feature.
iThe function of the SmartKey overrules the
KEYLESS-GO* function.
Warning!G
When closing the side windows and the
tilt/sliding sunroof, make sure that there is
no danger of anyone being harmed by the
closing procedure.
If potential danger exists, proceed as fol-
lows:
Release button ‹ to stop the closing
procedure. To open, press and hold but-
ton Œ. To continue the closing after
making sure that there is no danger of
ProCarManuals.com
461 Controls in detail
Trunk
Trunk
Opening trunk
You can open the trunk if the vehicle is sta-
tionary.
A minimum height clearance of 5.78 ft
(1.76 m) is required to open the trunk lid.Opening trunk from outside
1Trunk lid handle
Press and hold button Š on the
SmartKey or SmartKey with
KEYLESS-GO* until trunk unlocks and
begins to open.
or
Pull on handle1.
In vehicles without KEYLESS-GO*: The
vehicle must be unlocked.Opening trunk from inside
1Remote trunk opening/closing switch
Press and hold switch1 until the
trunk is opened.
The indicator lamp in switch1 comes
on and remains lit until the trunk is
closed.
To interrupt the opening procedure:
Release switch1.
Warning!G
Make sure the trunk is closed when the en-
gine is running and while driving. Among
other dangers such as blocked visibility,
deadly carbon monoxide (CO) gases may
enter the vehicle interior resulting in
unconsciousness and death.
!The trunk lid swings open upwards automat-
ically. Always make sure that there is sufficient
overhead clearance.
To stop the opening procedure, press
buttonŠ on the SmartKey or SmartKey with
KEYLESS-GO*.
ProCarManuals.com
462 Controls in detail
Trunk
Trunk opening-height restriction
The trunk lid opening height can be limited
when transporting goods on a roof rack
(e.g. presence of an optional MB sport lug-
gage container). When activated, the trunk
opens to approximately the height of the
roof edge.
Activate the limiting opening height of
trunk lid using the COMAND system
(
page 242).
Closing trunkClosing trunk from inside automatically
1Remote trunk opening/closing switch
Press and hold switch1 until the
trunk is closed.
The indicator lamp in the switch goes
out when the trunk is closed.
To interrupt the closing procedure:
Release switch1.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
iIf 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.
Warning!G
Maintain sight of trunk area while operating
door mounted switch. Monitor the closing
procedure carefully to make sure no one is
in danger of being injured.
To interrupt the closing procedure, release
the door mounted remote trunk open-
ing/closing switch.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the remote trunk
opening/closing switch can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
iIf the trunk lid comes into contact with an
object while closing (e.g. luggage that has been
piled too high) in the upper motion sequence, the
closing procedure is stopped and the trunk re-
opens slightly.
iYou can also close the trunk by hand.
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463 Controls in detail
Trunk
Closing trunk from outside
automatically
Vehicles without KEYLESS-GO*
1Trunk closing switch
Vehicles with KEYLESS-GO*
1Trunk closing switch
Press trunk closing switch1 briefly.
The trunk closes.
Warning!G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the trunk lid opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
do one of the following:
press button Š on the SmartKey or
SmartKey with KEYLESS-GO
press the trunk opening/closing switch
(on the driver’s door)
press the trunk closing switch
press the KEYLESS-GO locking/closing
switch*
pull the trunk lid handle
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the remote trunk
opening/closing switch can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
iIf the trunk lid comes into contact with an
object while closing (e.g. luggage that has been
piled too high) in the upper motion sequence, the
closing procedure is stopped and the trunk re-
opens slightly.
iYou can also close the trunk by hand.
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