2002 MERCEDES-BENZ S500 trunk lid lock

40 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Unlocking:
Press trunk lid lock (2) to open trunk only.
Locking:
Press the trunk lid lock button (3). All turn signal lamps
blink three times to indicate that the vehicle is locked. If
they do not blink three times, a door or trunk is not
properly closed or a KEYLESS-GO-card is still in the
vehicle. Check the multifunction display, see page 328.Notes:
If the trunk was previously locked separately, it will
remain locked, see page 51.
The vehicle cannot be centrally unlocked via the trunk
lid lock (2).
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of the rear shelf or inside the
trunk.
P54.25-2457-26

48 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Power closing assist for doors and trunk lid
(optional on model S 430 for Canada)
The doors and the trunk lid close automatically if:
•the doors are positioned against the lock,
•the trunk lid is lowered against the lock.
It is not necessary to slam the door or trunk lid closed, a
pneumatic power-assisted mechanism draws doors and
trunk lid closed quietly and automatically once the lid
or door has been latched. When the pneumatic power-
assisted mechanism has stopped, doors and / or trunk
can be reopened.Central locking switch
1Locking
2Unlocking
The central locking switch is located in the center
console.
The doors and trunk can only be locked with the central
locking switch, if all doors are closed except the driver’s
door.
Wa r n i n g !
To prevent possible personal injury, always keep
hands and fingers away from the door or trunk
opening when closing a door or the trunk lid. Be
especially careful when small children are around.The pneumatic power closing assist mechanism
cannot be interrupted once it has been engaged.To prevent personal injury, never actuate the
closing assist mechanism by tampering with the
door or trunk lid latch.

51 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk
0Neutral position – push to open (arrow)
1Unlocking
2Separate locking of trunk – remove mechanical key
in this position.
The lock is located in the license plate recess.When the trunk is separately locked, it remains locked
when centrally unlocking the vehicle.
To deny any unauthorized person access to the trunk,
lock it separately with the mechanical key. Leave only
the electronic key less its mechanical key with the
vehicle.
Notes:
In case of a malfunction in the central locking system
the trunk can be unlocked individually.
To unlock and open the trunk lid, turn mechanical key
to position 1, hold and push to open.
The mechanical key does not operate the central locking
system or antitheft alarm system.
When unlocking the trunk with the mechanical key, the
exterior lamps will flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key or (vehicles with KEYLESS-GO) when
carrying the KEYLESS-GO-card, grasp the door handle
or press the start-/stop button on the gear selector lever.
If the fuel filler flap cannot be opened, see page 376.
P54.25-2404-26
0
2

52 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Important!
Do not place mechanical key inside trunk, since trunk is
locked again when closing the lid if the vehicle has been
previously centrally locked.
Vehicles without trunk lid opening / closing system:
Lower trunk lid using handle (1) and close it with hands
placed flat on trunk lid. Please remember to keep your
fingers out of the space between the lid and the vehicle.

53 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Vehicles with trunk lid opening / closing system:
Press trunk lid button (2) briefly. The trunk lid closes
automatically.
The trunk lid can also be closed with the trunk lid
opening / closing switch located on the driver’s door, see
page 56.Notes:
The automatic closing process is interrupted if the
trunk lid is pushed against an object. The trunk lid will
reverse slightly and stop. In its final closing stage the
hydraulic power closing assist mechanism releases the
trunk lid which then drops into the lock by its own
weight. Now the trunk lid will stop but not reverse
slightly.
Investigate and correct the cause of interruption.
Now press trunk lid button (2) again to close the trunk
lid.
P54.25-2403-26
Wa r n i n g !
To prevent possible personal injury, always keep
hands and fingers away from the trunk opening
when closing the trunk lid. Be especially careful
when small children are around.Always be sure persons who might get injured are
away from the trunk area when you operate the
trunk closing button located on the vehicle door.To interrupt the hydraulic power closing assist
mechanism press trunk lid close button (2) inside
the trunk lid, push in trunk lid lock or press
buttonŠ on the electronic key.

54 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
In case of a malfunction the trunk lid can be opened and
closed manually.
To open, unlock trunk lid with the mechanical key and
open lid by hand, see page 51.
To close, lower trunk lid with hands placed flat on trunk
lid. Please remember to keep your fingers out of the
space between the lid and the vehicle.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of the rear shelf or inside the
trunk.Trunk lamp
The trunk lamp will switch off after approximately
10 minutes if the trunk lid is left open.

55 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid release switch
(Vehicles without trunk lid opening / closing system)
The switch is located on the driver’s door.The trunk lid will swing open automatically. You should
always make sure there is sufficient clearance.
A minimum height clearance of 6 ft. (1.85 m) is
required to open the trunk lid.
To open the trunk, the vehicle must be at standstill. Pull
up on switch until trunk lid is open.
The indicator lamp in the switch remains on with trunk
lid open.
Notes:
The trunk can also be opened by using the remote
control. Press Šbutton.
The trunk lid cannot be opened by the switch or the
remote control when previously locked separately with
the mechanical key. To open, see page 51.
The trunk lid cannot be opened with the trunk lid
release switch when the vehicle was previously locked
with the remote control. To unlock vehicle with the
remote control, see page 33.

56 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Trunk lid opening / closing system (optional)
The switch is located on the driver’s door.
The trunk lid will open and close automatically. You
should always make sure that there is sufficient
clearance.
A minimum height clearance of 6 ft. (1.85 m) is
required to open the trunk lid.
To open and close the trunk, the vehicle must be at
standstill. To o p e n t r u n k l i d :
Pull up on switch until trunk lid begins to open. The
switch can now be released, the trunk lid opens
automatically.
To interrupt the opening process, either pull up on
switch, or push in trunk lid lock, or press buttonŠ
on the remote control.
The indicator lamp in the switch remains on with trunk
lid open.
To close trunk lid:
Press upper half of switch until trunk lid is closed and
the indicator lamp in the switch goes out.
Wa r n i n g !
When closing the trunk lid, be sure that there is no
danger of anyone being harmed by the closing
procedure. Be especially careful when small
children are around. Maintain sight of trunk area
while operating the door mounted switch.To interrupt the hydraulic power closing assist
mechanism release trunk lid release/close switch
and pull up to open.