keyless go MERCEDES-BENZ S500 2002 W220 User Guide

36 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Opening the trunk
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.
Press transmit buttonŠ until trunk lid is open.
Important!
Do not place remote control in trunk since trunk is
locked when the lid is closed if the vehicle is centrally
locked.
Notes:
If the trunk was previously locked separately, it will
remain locked, see page 51.
Vehicles with optional remote trunk lid
opening / closing system, see page 56:
The switch operated opening/closing procedure can be
immediately halted by pressing buttonŠ on the
electronic key.KEYLESS-GO
Important!
For the KEYLESS-GO-system to function properly, the
operator should observe the following:
•The driver should carry the KEYLESS-GO-card with
him / her.
•To avoid radio transmission interference, never store
the KEYLESS-GO-card together with other electronic
items (e.g. cellular telephones, other KEYLESS-GO-
cards) or metallic objects (e.g. coins, metal foil).
•To lock or unlock the vehicle, the card must be
recognized by the system as being located outside
the vehicle. The card must be in close proximity to a
door or the trunk lid (approx. 3 ft. [1 m]). To activate
the start / stop button function, the KEYLESS-GO-
card must be recognized by the system as being
located inside the vehicle.
•If the KEYLESS-GO-card is positioned farther away
from the vehicle (e.g. inside clothing or a briefcase)
and can no longer be recognized by the system, the
vehicle cannot be locked or the engine started via
the KEYLESS-GO-system.

37 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index •If the KEYLESS-GO-card is removed from the vehicle
while the engine is running, or by placing the card
in front of the center armrest (see page 198), the
message “CHIP-CARD – NOT RECOGNIZED!” will
appear repeatedly for approx. 2 seconds in the
multifunction display, see page 328.
If the message “CHIP - CARD – NOT RECOGNIZED”
is ignored for an extended of time (approx.
15 minutes), the engine could stop by itself during a
vehicle stop (e.g. traffic light). The vehicle can then
no longer be centrally locked or the engine
restarted. You must first find the card. Start the
engine again. See page 230.
•Do not forget, the engine can be started by anyone
with a KEYLESS-GO-card that is left inside the
vehicle. Leaving the chip-card behind when exiting
and locking the vehicle, the message “CHIP-CARD –
STILL IN VEHICLE” appears in the multifunction
display, see page 328.
•Opening the driver’s door with the engine shut off
and no electronic key in the starter switch, the
message “CHIP-CARD – DO NOT FORGET” appears
as a reminder, see page 328. Important!
In the case of a malfunction in the KEYLESS-GO-system,
we recommend that you carry the electronic key plus
mechanical key with you and keep them in a safe place
so that they are always handy. Never leave the electronic
key in the vehicle.
Notes:
The KEYLESS-GO-function also permits closing of
windows and sliding / pop-up roof (convenience feature),
see page 44.
With the KEYLESS-GO-card in close proximity (approx.
3 ft. [1 m]) of the vehicle, aiming a jet of water at a door
handle (e.g. when washing the vehicle) or cleaning
snow from a door could lock or unlock the vehicle
inadvertently.
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.

38 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Locking and unlocking with KEYLESS-GO-card
Unlocking:
Grasp any door handle. All turn signal lamps blink once
to indicate that the vehicle is unlocked.
The KEYLESS-GO-card can be programmed for two
kinds of unlocking modes (see below):
Selective unlocking mode –
Grasp driver’s door handle to unlock driver’s door and
fuel filler flap.
Grasping the passenger door or a rear door, centrally
unlocks the vehicle.
Global unlocking mode –
Grasp any door handle to unlock both doors, fuel filler
flap, and trunk.
For choosing global or selective mode on KEYLESS-GO-
card, see page 41.Notes:
The door which was unlocked, can be opened
immediately after the audible click. The other door can
be opened after its lock button rises up.
If the trunk was previously locked separately, it will
remain locked, see page 51.
The presently active unlocking mode (selective or
global) can be determined by pressing the button on the
KEYLESS-GO-card (see page 41 for changing mode).
If within 40 seconds of unlocking with the
KEYLESS-GO-card, neither door nor trunk is opened,
the electronic key is not inserted in the starter switch,
or the central locking switch is not activated, the vehicle
will automatically lock.

39 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Locking:
Press lock button (1) at any door. 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 the KEYLESS-GO-card is still in the
vehicle. Check the multifunction display, see page 328.Note:
Locking the vehicle with the door lock button (1) is only
possible if a KEYLESS-GO-card is outside the vehicle.
P80.00-2040-26
1

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

41 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Choosing global or selective mode
on KEYLESS-GO-card
To choose between the selective or global opening mode
press and hold button (1) until the indicator lamp at the
requested symbol (2) or (3) comes on.Checking last KEYLESS-GO-card locking mode
Briefly press button (1). The indicator lamp (2) or (3)
lights up in red (vehicle locked) or in green (vehicle
unlocked).
P80.30-2027-26
1
2
3

42 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Simultaneous use of electronic key and
KEYLESS-GO-card
When using the electronic key and the KEYLESS-GO-
card at the same time, the electronic key overrules the
KEYLESS-GO-card.
If the engine is started with the start- / stop button on
the gear selector lever, and afterwards the electronic
key is inserted in the starter switch, the engine
continues to run with the gear selector lever in positions
“R”, “N”, “D” plus ranges “4”, “3”, “2”, “1” until it is
stopped by using the start- / stop button on the gear
selector lever.If the electronic key is inserted in the starter switch
while the gear selector lever is in position “P”, the
electronic key takes over. The vehicle operates
according to the electronic key position in the starter
switch (see page 230), eventually even stopping the
engine.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card with you, and lock your vehicle.
Unsupervised use of vehicle equipment may cause
serious personal injury.

44 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Note:
If the windows and sliding / pop-up roof cannot be
operated automatically by pressing the transmit button
of t he r emote con trol t hen it may b e ne ces sary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button), or to synchronize the remote control,
see page 371 and 373.
Convenience feature
(Operation with KEYLESS-GO)
Continue to press lock button on door handle after
locking the vehicle.
The windows and sliding / pop-up roof begin to close
after approx. 1 second.
To interrupt closing procedure, release lock button. To
reverse direction (within 2 seconds after closing), pull
and hold door handle. Opening of windows starts and
continues for as long as the door handle is held but the
door not opened.Ensure that all side windows and the sliding / pop-up
roof are properly closed before leaving the vehicle.
Wa r n i n g !
Never operate the windows or sliding / pop-up roof
if there is the possibility of anyone being harmed
by the closing procedure.In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the lock button. To reverse direction of movement
pull and hold outside door handle.

49 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
When the driver’s door is open and the central locking
switch activated, the complete vehicle is locked after
closing driver’s door.
If the vehicle was previously locked with the central
locking switch, while in the selective remote control
mode, only the door opened from the inside is unlocked.
If the vehicle was previously locked with the central
locking switch, while in the global remote control mode,
the complete vehicle is unlocked when a door is opened
from the inside.
Notes:
If the vehicle was previously locked with the remote
control or the lock button at any door handle (vehicles
with KEYLESS-GO), the doors and trunk cannot be
unlocked with the central locking switch.
The fuel filler flap cannot be locked or unlocked with
the central locking switch.If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. 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.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card (if so equipped) with you, and
lock your vehicle. Do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equipment
may cause serious personal injury.

50 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Automatic central locking
With the automatic central locking system activated, the
doors and trunk are locked at vehicle speeds of
approximately 9 mph (15 km / h) or more. The fuel filler
flap remains unlocked.
The automatic central locking function can be switched
on or off in the individual setting menu “VEHICLE” –
“AUTOMATIC DOOR LOCK”, see page 146.
Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approximately 9 mph
(15 km / h) or more.
If a door is opened from the inside at speeds of
approximately 9 mph (15 km / h) or less with the
automatic central locking activated, the door will again
be automatically locked at speeds of approximately
9 mph (15 km / h) or more.
When a door is opened from the inside, the complete
vehicle is unlocked, if the vehicle is previously unlocked
in the global remote control mode.Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:
With the automatic central locking activated and the
electronic key in starter switch position 2 (vehicles with
KEYLESS-GO: operation position, see page 236), the
vehicle doors will lock if the left front wheel as well as
the right rear wheel spin at vehicle speeds of
approximately 9 mph (15 km / h) or more.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an
accident in which an airbag or emergency tensioning
retractor deploys (this is intended to aid rescue and
exit).