trunk MERCEDES-BENZ S CLASS 2005 User Guide

96 Controls in detailLocking and unlockingLoss 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.
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 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 an outside
door handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks:

the doors


the trunk


the fuel filler flap
SmartKey with KEYLESS-GO1‹ Lock button
2Š Opening button for trunk
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 79)
iWhen any outside door handle other
than the driver’s outside door handle is
grasped, the vehicle is centrally un-
locked.

98 Controls in detailLocking and unlockingImportant notes on using KEYLESS-GO

You can also use the SmartKey with
KEYLESS-GO like a normal
SmartKey (
page 92).


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 lid.


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 35), you can only turn it off
again with this button, even if you have
put the SmartKey in the starter switch
in the meantime.
This does not apply if, after starting, the
gear selector lever is still in positionP
and the SmartKey is then inserted in
the starter switch. The SmartKey will
then have priority over the
KEYLESS-GO function and the vehicle’s
electrical system will operate accord-
ing to the position of the SmartKey in
the starter switch, even stopping the
engine.


If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.

99 Controls in detail
Locking and unlocking


If the SmartKey with KEYLESS-GO is re-
moved from the vehicle while the igni-
tion is switched on (e.g. if passenger
exits the vehicle with the SmartKey
with KEYLESS-GO), the message KEY
NOT RECOGNIZEDwill appear in the multifunction display
while driving off.
Find the SmartKey or change its
present location immediately
(e.g. place it on the front passenger
seat or insert it in shirt pocket).


Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle. If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, the message KEY
STILL IN VEHICLEwill appear in the multifunction display.Factory setting
Global unlocking

Grasp the outside door handle.
All turn signal lamps flash once. The
locking knob in the doors move up. The
anti-theft alarm system is disarmed.
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 central locking switch is not acti-
vated.Global locking

Press lock button at the outside door
handle (
page 58) or trunk lid
(
page 101).
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
iIf the vehicle has been parked for more
than 72 hours, you must pull the out-
side door handle in order to activate
the KEYLESS-GO function.
iThe vehicle could inadvertently be un-
locked if the SmartKey with
KEYLESS-GO is within 3 ft. (1 m) of the
vehicle and:

the outside door handle is splashed
with water, or


you attempt to clean the outside
door handle.

100 Controls in detailLocking and unlockingSelective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you, grasp the driv-
er’s outside door handle only the driver’s
door and the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about six 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

Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver's door moves
up. The anti-theft alarm system is dis-
armed.Global unlocking

Grasp any outside door handle other
than the driver’s outside door handle.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking

Press lock button at outside door han-
dle (
page 58).
All turn signal lamps flash three times.
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.
iYou can also lock the vehicle using the
lock button at trunk lid (
page 101)
or, vehicles with trunk lid
opening/closing system*,
KEYLESS-GO locking/closing switch
(
page 110).
!If you can not lock or unlock the vehicle
with the SmartKey with KEYLESS-GO,
then either the battery in the SmartKey
with KEYLESS-GO is discharged, the
SmartKey with KEYLESS-GO is mal-
functioning or the vehicle battery is
drained.

Check the battery in the SmartKey
with KEYLESS-GO and replace it if
necessary (
page 387).


Use the mechanical key to unlock
the driver’s door (
page 383) and
trunk (
page 384).


Use the mechanical key to lock the
driver’s door (
page 383).

101 Controls in detail
Locking and unlocking
Checking the battery
Press button‹ orŒ.
Battery check lamp5 comes on brief-
ly to indicate that the SmartKey with
KEYLESS-GO battery is in order.Global locking using the lock button at
trunk lid
1Vehicle lock button

Press vehicle lock button1.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.


Have the vehicle battery and the
battery connections checked
(page 403).
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, the
SmartKey battery with KEYLESS-GO is
discharged.
Replace the battery (
page 387).
You can obtain the required battery at
any authorized Mercedes-Benz Center.
iIf the battery is checked within signal
range of the vehicle, pressing the
button‹ orŒ will lock or unlock
the vehicle accordingly.iTo prevent a possible inadvertent lock-
out, the trunk will open automatically if
a SmartKey with KEYLESS-GO is recog-
nized inside the vehicle or in the trunk.
iYou can also lock the vehicle using the
lock button at outside door handle
(page 58) or, vehicles with trunk lid
opening/closing system*,
KEYLESS-GO locking/closing switch
(page 110).

102 Controls in detailLocking and unlockingUnlocking and opening the trunk
You can unlock and open the trunk sepa-
rately.
A minimum height clearance of 6 ft.
(1.85 m) is required to open the trunk lid.
Press and hold button Š until trunk
unlocks and begins to open.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO or mechanical key, 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 im-
mediately to your car insurance com-
pany.

Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handle
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
Vehicles with trunk lid opening/closing
system*: To stop the opening proce-
dure, press buttonŠ. The trunk lid
stops moving.

103 Controls in detail
Locking and unlocking
Front doors
Pull on door handle2 on the respec-
tive front door to open door.
If door was locked, locking knob1 will
move up.
Rear doors

Pull up locking knob1 on the respec-
tive rear door to unlock door.

Pull on door handle2 on the respec-
tive rear door to open door.
Opening the trunk
Opening the trunk from the outside
A minimum height clearance of 6 ft.
(1.85 m) is required to open the trunk lid.
The trunk lid lock button is located in the
rear license plate recess.
1Trunk lid lock button
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Press the outer left-hand side of trunk
lid button1.
The trunk lid opens.
iIf the vehicle has previously been
locked from the outside with the
SmartKey or KEYLESS-GO*, opening a
door from the inside will trigger the an-
ti-theft alarm system.
To cancel the alarm, do one of the fol-
lowing:

Insert the SmartKey in the starter
switch.


Press button Œ or ‹ on the
SmartKey.
In vehicles with KEYLESS-GO*:


Grasp the outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft. (1 m) of the ve-
hicle.


Press the KEYLESS-GO* start/stop
button (
page 35).
The SmartKey with KEYLESS-GO
must be inside the vehicle.

104 Controls in detailLocking and unlocking
Opening the trunk from the inside
You can open the trunk from the inside if
the vehicle is stationary.
A minimum height clearance of 6 ft.
(1.85 m) is required to open the trunk lid.
The switch is located on the driver’s door.
1Indicator lamp
2Remote trunk lid switch
Pull remote trunk lid switch2 until
trunk begins to open.
The trunk lid opens. The indicator
lamp1 comes on and remains lit until
the trunk is closed.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
Vehicles with trunk lid opening/closing
system*: To stop the opening proce-
dure, press buttonŠ on the
SmartKey or SmartKey with
KEYLESS-GO*. iThe trunk can also be opened using
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
lid emergency release” (
page 111).
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.
Vehicles with trunk lid opening/closing
system*: To stop the opening proce-
dure, press or pull remote trunk lid
switch2. iThe trunk can also be opened using
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
lid emergency release” (
page 111).

105 Controls in detail
Locking and unlocking
Limiting opening height of trunk lid*
Vehicles with trunk lid opening/closing
system*:
The trunk lid opening height can be limited
when transporting goods on a roof rack
(e.g. presence of an MB sport luggage con-
tainer*). When activated, the trunk lid
opens to approximately the height of the
roof edge. 
Activate the limiting opening height of
trunk lid using the control system
(page 169).
Closing the trunk
Closing the trunk from the inside auto-
matically*
In vehicles with trunk lid opening/closing
system* you can close the trunk from the
inside using the remote trunk lid switch.
Press remote trunk lid switch
(page 104) until the indicator lamp in
the switch goes out and trunk lid is
closed.
To interrupt the closing procedure:

Release remote trunk lid switch.iYou can also close the trunk by hand.
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 lid switch.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the start-
er switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the remote trunk lid switch can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.


106 Controls in detailLocking and unlockingIf 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 reopens slightly.Closing the trunk from the outside
manually
1Handle

Lower trunk lid by pulling firmly on
handle1.2Extending handle

Push the trunk lid down gently at the
extending handle2 until it engages
into the lock.
The extending handle2 is retracted
after a few seconds.
The power closing assist automatically en-
sures that the lid is pulled closed com-
pletely (
page 112).
Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle interi-
or.