2005 MERCEDES-BENZ E320CDI key

106 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 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

Press buttonΠonce.
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

Press buttonΠtwice.
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 button‹.
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.
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the batteries in the
SmartKey are discharged, the
SmartKey with KEYLESS-GO is mal-
functioning or the vehicle battery is
drained.

Check the batteries in the
SmartKey with KEYLESS-GO
(page 107) and replace them if
necessary (
page 415).


Use the mechanical key to unlock
the driver’s door (
page 410).


Have the vehicle battery checked
by an authorized Mercedes-Benz
Center.


Use the mechanical key to lock the
driver’s door (
page 410).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Center.

107 Controls in detail
Locking 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.Global locking using the lock button at
trunk lid
1Lock button at trunk lid

Press lock button at trunk lid1.
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
!If battery check lamp5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries (
page 415).
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.
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.
iIf the vehicle was previously centrally
locked with KEYLESS-GO, the trunk will
lock automatically after closing it. The
turn signals flash three times to con-
firm locking.iYou can also lock the vehicle using the
lock button at outside door handle
(page 105) or KEYLESS-GO locking/
closing switch (
page 116).

108 Controls in detailLocking and unlockingUnlocking and opening the trunk lid
You can unlock and open the trunk lid sep-
arately.
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
The handle is located in the rear license
plate recess.
Pull on the handle
or

Press and hold buttonŠ until the
trunk lid unlocks and opens.Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO, you should do the following:

Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Center.

Report the loss immediately to your car
insurance company.

Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance.
Vehicles with trunk lid opening/closing
system*: to stop the opening proce-
dure, press buttonŠ on the
SmartKey with KEYLESS-GO. The trunk
lid stops moving.iIf the vehicle was previously centrally
locked with KEYLESS-GO, the trunk will
lock automatically after closing it. The
turn signals flash three times to con-
firm locking.

109 Controls in detail
Locking and unlocking
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 handleFront doors

Pull on door handle2 on the respec-
tive front or rear 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.
iIf the vehicle has previously been
locked from the outside with the
SmartKey, opening a door from the in-
side will trigger the anti-theft alarm sys-
tem.
To cancel the alarm, do one of the fol-
lowing:

Press button Œ or ‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.
In vehicles with KEYLESS-GO*


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


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

110 Controls in detailLocking and unlockingOpening the trunk
Opening the trunk from the outside
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
The handle is located above the rear li-
cense plate recess.
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Pull on the handle.
The trunk lid opens.Opening the trunk from the inside
You can open the trunk from the inside if
the vehicle is stationary.
A minimum height clearance of 5.90 ft
(1.80 m) is required to open the trunk lid.
The switch is located on the driver’s door.
1Remote trunk lid switch with indicator
lamp
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance.iThe trunk can also be opened using the
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
lid emergency release” (
page 117).
iIf the vehicle was previously centrally
locked, the trunk will lock automatical-
ly after closing it. The turn signals flash
three times to confirm locking.

111 Controls in detail
Locking and unlocking
1Remote trunk lid switch with indicator
lamp (vehicles with trunk lid open-
ing/closing system*)
Pull remote trunk lid switch1 until the
trunk begins to open.
The trunk lid opens. The indicator lamp
in the switch comes on and remains lit
until the trunk is closed.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 optional MB sport lug-
gage container). 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 166).
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance.
Vehicles with trunk lid opening/closing
system*: To stop the opening proce-
dure, press or pull remote trunk lid
switch1.iThe trunk can also be opened using the
buttonŠ on the SmartKey or
SmartKey with KEYLESS-GO* or from
its inside in an emergency, see “Trunk
lid emergency release” (
page 117).

112 Controls in detailLocking and unlockingClosing 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 111) until the indicator lamp in
the switch goes out and the trunk lid is
closed.
To interrupt the closing procedure:

Release the remote trunk lid switch.If the trunk lid comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the trunk reopens slightly.iYou can also close the trunk by hand.
Warning!
G
Maintain sight of trunk area while operating
the door mounted switch. Monitor the clos-
ing procedure carefully to make sure that 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 SmartKey with
KEYLESS-GO* removed from the starter
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. Unsu-
pervised 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 visibility blockage,
exhaust fumes may enter the vehicle
interior.

113 Controls in detail
Locking and unlocking
Closing the trunk from the outside
manually
Depending on production date, your vehi-
cle is equipped with either trunk design A
or B.Trunk design A1Handle 
Lower trunk lid by pulling firmly on
handle1.

Close trunk lid with hands placed flat
on trunk lid.
Trunk design B1Handle
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 or SmartKey with KEYLESS-GO*
from the starter switch, take it 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.Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle
interior.