2005 MERCEDES-BENZ CL55AMG start stop button

62 Safety and SecurityOccupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are:

Seat belts


Emergency tensioning device


Air bags


Child seats


Child seat recognition


Lower anchors and tethers for children
(LATCH)
As independent systems, their protective
effects work in conjunction with each oth-
er.The 1 indicator lamp in the instrument
cluster comes on


for about four seconds when you turn
the SmartKey in the starter switch to
position1 or press the KEYLESS-GO*
start/stop button (
page 35) once. It
then goes out briefly, comes on again
and remains lit until you start the en-
gine.


for about four seconds when you start
the engine by turning the SmartKey or
pressing the KEYLESS-GO* start/stop
button.The restraint systems are fully operational
if the 1 indicator lamp is not lit when
the engine is running.
A malfunction in the system has been de-
tected if the 1 indicator lamp:


fails to extinguish after approximately
four seconds.


does not come on at all.


comes on after the engine was started
or while driving.
For safety reasons, we strongly recom-
mend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
For more information, see “Practical hints”
(
page 333).
iFor information on infants and children
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle”
(page 72).
iThe 1 indicator lamp remains lit if
the SmartKey is turned to position 2
and left there or the KEYLESS-GO*
start/stop button is pressed twice. The
indicator lamp will go out when you
start the engine.

74 Safety and SecurityOccupant safetyBabySmart
TM1 air bag deactivation
system
The 58 indicator lamp is located on
the lower part of the center console.
1Indicator lampSpecial BabySmart
TM compatible child
seats, designed for use with the
Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are
required for use with the BabySmart
TM
air bag deactivation system. With the spe-
cial child seat properly installed, the pas-
senger front air bag will not deploy.
The 58 indicator lamp1 located
on the lower part of the front center con-
sole will be illuminated, except with the
SmartKey removed or in starter switch
position0.Self-test BabySmart
TM2
without special
child seat installed
After turning the SmartKey in the starter
switch to position1 or2 or pressing the
KEYLESS-GO* start/stop button
(
page 35) once or twice, the 58
indicator lamp comes on for approximately
six seconds and then goes out.
If the 58 indicator lamp should not
come on or is continuously lit, the system
is not functioning. You must see an autho-
rized Mercedes-Benz Center before seat-
ing any child on the front passenger seat.
For more information, see “Practical hints”
(page 334).
Do not leave children unattended in the ve-
hicle; even if the children are secured in a
child restraint system. Unsupervised chil-
dren in a child restraint system may use ve-
hicle equipment and cause an accident
and/or serious personal injury.1BabySmart
TMis a trademark of Siemens Automo-
tive Corp.
iThe system does not deactivate the
side impact air bag and the emergency
tensioning device.
2BabySmart
TMis a trademark of Siemens Automo-
tive Corp. 

83 Safety and Security
Driving safety systems
For more information, see “Practical hints”
(page 331).Switching off the ESP
To improve the vehicle's traction, turn off
the ESP in driving situations where it would
be advantageous to have the drive wheels
spin and thus cut into surfaces for better
grip such as:


starting out on slippery surfaces and in
deep snow in conjunction with snow
chains


in sand or gravel
Warning!
G
The ESP cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The ESP
cannot prevent accidents, including those
resulting from excessive speed in turns, or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The ca-
pabilities of an ESP equipped vehicle must
never be exploited in a reckless or danger-
ous manner which could jeopardize the us-
er’s safety or the safety of others.iDistronic* is switched off when ESP is
activated.iThe ESP will only function properly if
you use wheels of the recommended
tire size (
page 404).
!Because of the ESP’s automatic opera-
tion, the engine and ignition must be
shut off (SmartKey in starter switch
position0 or1 or KEYLESS-GO
start/stop button* in position0 or1)
when

the parking brake is being tested on
a brake test dynamometer


the vehicle is being towed with the
front/rear axle raised
Active braking action through the ESP
may otherwise seriously damage the
brake system.
Warning!
G
The ESP should not be switched off during
normal driving other than in the circum-
stances described below. Disabling of the
system will reduce vehicle stability in stan-
dard driving maneuvers.iDistronic* cannot be activated when
the ESP has been deactivated.

85 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
The immobilizer is activated.
With KEYLESS-GO*

Turn off the engine by means of the
start/stop button (
page 35) on the
gear selector lever.

Open the driver’s door.
The immobilizer is activated.Deactivating
With the SmartKey

Insert the SmartKey in the starter
switch.
The immobilizer is deactivated.
With KEYLESS-GO*

Start the engine by means of the
start/stop button (
page 35) on the
gear selector lever.
The immobilizer is deactivated.
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:

a door


the trunk


the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when


someone attempts to raise the vehicle


the vehicle is opened with the
mechanical key


someone opens a door from the inside
if the vehicle was locked from the out-
side with the SmartKey


someone opens the trunk lid with the
emergency release button
iIn case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).

87 Safety and Security
Anti-theft systems
Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter
switch.
or

Press the Œ or ‹ button on the
SmartKey.
The alarm is canceled.
With KEYLESS-GO*

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

Press the KEYLESS-GO* start/stop
button (
page 35).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
The alarm is canceled.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.Arming tow-away alarm

Lock your vehicle.
The tow-away alarm is automatically
armed after about 30 seconds.
Disarming tow-away alarm
To prevent triggering the tow-away alarm,
switch off the tow-away alarm feature be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
by the Tele Aid system (
page 243)
provided Tele Aid service was sub-
scribed to and properly activated, and
that necessary cellular service and GPS
coverage are available.

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

You can also use the SmartKey with
KEYLESS-GO like a normal
SmartKey (
page 90).


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.

101 Controls in detail
Locking and unlocking
Opening the trunk
Opening the trunk from the outside
A minimum height clearance of 6.3 ft
(1.90 m) is required to open the trunk lid.
The trunk lid lock button is located in the
rear license plate recess.
1Trunk lid lock
In vehicles without KEYLESS-GO*: The ve-
hicle must be unlocked.
Press trunk lid lock1.
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.
!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 109).

105 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles without KEYLESS-GO*)
In vehicles with trunk lid opening/closing
system* you can close the trunk separate-
ly from the outside using the trunk lid clos-
ing switch.
1Trunk lid closing switch

Press trunk lid closing switch1 brief-
ly.
The trunk lid closes.
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
(page 104).
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 opening when closing the trunk.
Be especially careful when small children
are around. To stop the closing procedure,
do one of the following:

press trunk lid closing switch1


press the Š button on the SmartKey


press the remote trunk lid switch (on the
driver’s door)
Even with the SmartKey removed from the
starter switch, the trunk lid closing switch
can be operated. Therefore, do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.