2004 MERCEDES-BENZ CLK-CLASS warning light

72 Safety and SecurityOccupant safetySelf-test BabySmart
TM1
without special
child seat installed
After turning the SmartKey in the starter
switch to position1 or2 or pressing the
KEYLESS-GO* start/stop button once or
twice, the PASS. AIRBAG OFF indicator
lamp1 located in the center console
comes on for approximately six seconds
and then goes out.
If the indicator lamp should not come on or
is continuously lit, the system is not func-
tioning. You must see an authorized
Mercedes-Benz Center before seating any
child on the passenger seat.
More information can be found in the
“Practical hints” section (page 319).
1BabySmart
TM is a trademark of Siemens
Automotive Corp.
Warning!
G
The BabySmart
TM airbag deactivation sys-
tem will ONLY work with a special child seat
designed to operate with it. It will not work
with child seats which are not BabySmart
TM
compatible.
Never place anything between seat cushion
and child seat (e.g. pillow), since it reduces
the effectiveness of the deactivation sys-
tem. The bottom of the child seat must
make full contact with the passenger seat
cushion. An incorrectly mounted child seat
could cause injuries to the child in case of an
accident, instead of protecting the child.
Follow the manufacturer’s instructions for
installation of special child seats.
Warning!
G
When using a BabySmart
TM compatible
child seat on the front passenger seat, the
passenger front airbag will not deploy only if
the PASS. AIRBAG OFF indicator lamp re-
mains illuminated.
Please make sure to check the indicator ev-
ery time you use the special system child
seat. Should the light go out while the re-
straint is installed, please check installation.
If the light remains out, do not use the
BabySmart
TM restraint to transport children
on the front passenger seat until the system
has been repaired.
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77 Safety and Security
Driving safety systems
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even with light brake pressure.The - indicator lamp in the instrument
cluster (
page 22) comes on when you
turn the SmartKey in the starter switch to
position2 or press the KEYLESS-GO*
start/stop button twice. It goes out when
the engine is running.
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode.

Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and
functions as a reminder to take extra care
while driving.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
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101 Controls in detail
Locking and unlocking
The trunk lid opens. The indicator lamp
in the switch comes on and remains lit
until the trunk is closed.The trunk can also be opened using the
SmartKey (
page 90) or from its inside in
an emergency, see “Trunk lid emergency
release” (
page 105).
Closing the trunk from the inside

Press the remote trunk lid closing
switch2 (
page 100) until the indi-
cator lamp in the switch goes out and
the trunk lid is closed.
To interrupt the closing procedure:

Release remote trunk lid closing
switch2.
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.
!The trunk lid swings open upwards au-
tomatically. Always make sure there is
sufficient overhead clearance. To stop
the opening procedure, press the re-
mote trunk lid opening or closing
switch.iIf the trunk lid does not open, it is still
locked separately (if applicable)
(page 106).
If the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed (
page 100). The
turn signals will flash three times to
confirm locking.
Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.
Warning!
G
Maintain sight of trunk area while operating
the door mounted switch. Monitor the clos-
ing procedure carefully to ensure that no
one is in danger of being injured.
To interrupt the closing procedure, release
the door mounted remote trunk lid closing
switch.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with you and lock your vehicle. 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.
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102 Controls in detailLocking and unlockingClosing the trunk from outside
(vehicles without KEYLESS-GO*)
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.
Warning!
G
Monitor the closing procedure carefully to
ensure that 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,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with you and lock your vehicle. 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. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.iDo not place the SmartKey in the open
trunk. You may lock yourself out.
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103 Controls in detail
Locking and unlocking
Closing the trunk from the outside
(vehicles with KEYLESS-GO*)
1Trunk lid closing switch
Make sure you have the SmartKey with
KEYLESS-GO with you.

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.
iTo prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle or in the
trunk.Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.
Warning!
G
Monitor the closing procedure carefully to
ensure that 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,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey with KEYLESS-GO.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO with you and
lock your vehicle. Do not leave children un-
attended 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.
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104 Controls in detailLocking and unlockingClosing the trunk and locking the vehi-
cle from the outside (vehicles with
KEYLESS-GO*)
1KEYLESS-GO locking/closing switch
You can close the trunk lid and lock the ve-
hicle simultaneously.
Make sure you have the SmartKey with
KEYLESS-GO with you.

Press switch1 briefly.
The vehicle is locked and the trunk lid
closes automatically. The turn signals
flash three times to confirm locking.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.
iTo prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle or in the
trunk.Warning!
G
Only drive with the trunk closed. Among oth-
er dangers, such as your view being blocked,
exhaust fumes may enter the vehicle
interior.
Warning!
G
Monitor the closing procedure carefully to
ensure that 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,
press the remote trunk lid opening or clos-
ing switch (on driver’s door), the trunk lid
closing switch1, or the Š button on the
SmartKey with KEYLESS-GO.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO with you and
lock your vehicle. Do not leave children un-
attended 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.
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120 Controls in detailLighting
Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on and off with the
exterior lamp switch. For exterior lamp
switch, see “Exterior lamp switch”
(page 119).
Automatic headlamp mode
The parking lamps, low beam headlamps
and license plate lamps switch on and off
automatically depending on the brightness
of the ambient light.

Turn the exterior lamp switch toU.
iIf you remove the SmartKey and open
the driver’s door while the parking
lamps or low beam headlamps are
switched on,

a warning sounds


$ appears in the multifunction
display


the message
Turn off lamps!
ap-
pears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
Warning!
G
If the exterior lamp switch is set toU,

the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.


the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position U to B with the
vehicle at a standstill. Switching from U
to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle's lights at all
times.
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122 Controls in detailLightingSwitching on fog lamps
Switching on front fog lamps

Make sure the low beam headlamps
are switched on.

Pull out exterior lamp switch to first
stop.
The green indicator lamp‡ beside
the lamp switch comes on.Switching on rear fog lamp

Make sure the low beam headlamps
are switched on.

Pull out exterior lamp switch to second
stop.
The yellow indicator lamp† beside
the lamp switch comes on.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from position U to B with
the vehicle at a standstill. Switching from
U to B will briefly switch off the head-
lamps. Doing so while driving in low ambient
lighting conditions may result in an acci-
dent.iFog lamps will operate with the parking
lamps and/or the low beam headlamps
on. Fog lamps should only be used in
conjunction with low beam headlamps.
Consult your State or Province Motor
Vehicle Regulations regarding permis-
sible lamp operation.
iThe front fog lamps and rear fog lamp
cannot be switched on manually with
exterior lamp switch in positionU.
To activate the fog lamps, turn exterior
lamp switch to positionB and pull
the exterior lamp switch to first or sec-
ond stop (
page 122).
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