65 Safety and Security
Occupant safety
The
7
indicator lamp located on the
glove box will be illuminated, except with
the key removed or in the starter switch
position0.
Self-test BabySmart
TM
without special
child seat installed
After turning the key in the starter switch
to position1 or2, the 7
indicator lamp
located on the glove box lights up for ap-
prox. 6 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.
iThe system does not deactivate the
head-thorax airbag and the emergency
tensioning device.
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 compatible child
seat on the front passenger seat, the front
passenger airbag will not deploy only if the 7
indicator lamp remains illuminated.
Please be sure to check the indicator every
time you use the special system child seat.
Should the light go out while the restraint is
installed, please check installation. If the
light remains out, do not use the
BabySmart
TM restraint to transport children
on the passenger seat until the system has
been repaired.
69 Safety and Security
Driving safety systems
The
-
warning lamp in the speedome-
ter (
page 21) lights up when you turn the
key to position1 or2. It goes out when the
engine is running.
Flashing warning lamp while braking
The v
warning lamp flashes whenever
the ABS is activated. Always adapt your
driving style to the prevailing road and
weather conditions.
When the ABS is in the regulating
mode, continue to apply pressure on
the brake pedal.
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost thereby potential-
ly reducing the braking distance. Apply
continuous full braking pressure until the
emergency braking situation is over. The
ABS will prevent the wheels from locking.
When you release the brake pedal the
brakes function again as normal. The BAS
is then deactivated.
Warning!
G
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency be-
yond that afforded by the condition of the
vehicle brakes and tires or the traction af-
forded. The ABS cannot prevent accidents,
including those resulting from excessive
speed in turns, following another vehicle too
closely, or aquaplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ABS equipped
vehicle must never be exploited in a reck-
less or dangerous manner which could jeop-
ardize the user’s safety or the safety of
others.
70 Safety and SecurityDriving safety systems
ESP
The Electronic Stability Program (ESP)
monitors the vehicle's traction (force of
adhesive friction between the tires and the
road surface) and handling.
The ESP recognizes when a wheel is spin-
ning or if the vehicle starts to skid. By ap-
plying brakes to the appropriate wheel and
by limiting engine output, the ESP works to
stabilize the vehicle. The ESP is especially
useful while driving off and on wet or slip-
pery road surfaces.
The ABS/ESP warning lamp
v
in the
speedometer dial flashes when the ESP is
engaged.
The warning lamp
v
in the speedome-
ter dial (
page 21) lights up when you
turn the key to position1 or2. It goes out
when you start the engine
Warning!
G
BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking efficiency beyond that af-
forded by the condition of the vehicle brakes
and tires or the traction. The BAS cannot
prevent accidents, including those resulting
from excessive speed in turns, following an-
other vehicle too closely, or hydroplaning.
Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of a BAS
equipped vehicle must never be exploited in
a reckless or dangerous manner which
could jeopardize the user’s safety or the
safety of others.
Warning!
G
Never switch off the ESP when you see the
ABS/ESP-warning lamp
v
flashing in
the speedometer dial. In this case proceed
as follows:
While driving off, apply as little throttle
as possible.
While driving, ease up on the accelera-
tor.
Adapt your speed and driving style to
the prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP cannot prevent accidents resulting
from excessive speed.
72 Safety and SecurityDriving safety systemsThe button is located in the lower part of
the center console.
1ESP on/off
Press ESP button1 until the ESP warn-
ing lamp
v
in the speedometer
lights up.
ESP is deactivated.
If one or more wheels are spinning, the
ESP warning lamp v
in the speedome-
ter flashes, regardless of the speed.
Traction control brakes a spinning wheel
even when ESP is deactivated.
ESP always operates when you are brak-
ing, even when it has been deactivated.Switching on ESP
Press button1.
The ESP warning lamp
v
in the
speedometer goes out. You are now
again in normal driving mode.
SBC brake system
The SBC brake system combines a hydrau-
lic brake circuit with electronically con-
trolled brake servo assistance. You have
increased braking safety and improved
braking comfort.
!Avoid spinning of a drive wheel for an
extended period with the ESP switched
off. This may cause serious damage to
the drive train which is not covered by
the Mercedes-Benz Limited Warranty.Warning!
G
When the ESP warning lamp
v
is
illuminated continuously, ESP is switched
off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP.
Warning!
G
Never ignore a brake malfunction indicated
in the speedometer display, for example by
the
;
(USA only) or
3
(Canada only)
indicator lamp. Refer to the “Practical hints”
section (
page 253). Also read and ob-
serve the messages in the instrument clus-
ter display (page 257).
77 Safety and Security
Anti-theft systems
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
When you lock your vehicle, the tow-away
alarm is automatically armed after about
30 seconds.
When you unlock your vehicle, the
tow-away protection disarms automatical-
ly.Disarming tow-away alarm
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train.
The switch is on the center console be-
tween the driver’s seat and the passenger
seat.
1Tow-away alarm off switch
2Indicator lamp
Turn off the ignition and remove the
key.
Press switch1.
The indicator lamp2 in the switch
lights up briefly.
Lock your vehicle with the key or (vehi-
cles with KEYLESS-GO*) the lock but-
ton at each door handle.
The tow-away alarm remains disarmed un-
til you lock your vehicle again.
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
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem (
page 202) provided Tele Aid
service was subscribed to and properly
activated.
iYou cannot disarm the tow-away alarm
if the ignition is turned on.
82 Controls in detailLocking and unlocking
Checking the batteries
Press button
‹
or
Œ
.
The battery check lamp5 lights up
briefly to indicate that the key batteries
are in order.Unlocking the trunk lid
You can unlock the trunk separately.
Press and hold button
Š
until trunk
unlocks.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the electronics are dis-
charged or the key is malfunctioning.
Check the batteries in the key
(page 82) and replace them if
necessary (
page 293).
or
Use the mechanical key to unlock
the doors (
page 290) and trunk
(
page 291) as required. Lock the
vehicle using the mechanical key
(page 292).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If the battery check lamp5 does not
light up briefly during check then the
key batteries are discharged.
Change the batteries (
page 293).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
iIf the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signals will
flash three times to confirm locking.
86 Controls in detailLocking and unlockingFactory setting
Global unlocking
Grasp the door handle.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk is opened.
Global locking
Press lock button at door handle
(page 50) or trunk (
page 88).Individual setting
If you frequently travel alone, you may wish
t o r e p r o g r a m t h e K E Y L E S S - G O c a r d s o t h a t
grasping a door handle only unlocks the
driver’s door, interior lockable storage
compartments and the fuel filler flap.
1Programming button
2“Driver’s door” symbol
3“Global unlock” symbol
Press and hold the programming
button1 until the “Driver’s door”
symbol2 lights up.
The KEYLESS-GO card will then func-
tion as follows:Unlocking the driver’s door
Grasp the driver’s handle.
Global unlocking
Grasp the door handle on the pas-
senger side.
Global locking
Press lock button at door handle or
trunk.
iThe vehicle could inadvertently unlock
if the KEYLESS-GO card is within 3 ft.
(1 m) of the vehicle and
the door handle is splashed with
water, or
you attempt to clean the door
handle.
87 Controls in detail
Locking and unlocking
Restoring to factory setting
Press and hold the programming
button1 until the “Global unlock”
symbol3 lights up.Checking the batteries
Briefly press the programming
button1.
The KEYLESS-GO card batteries are in
order if the indicator lamp for either the
“Driver’s door”2 or “Global unlock”3
comes on red or green.Checking vehicle lock status
If you cannot remember whether you have
locked the vehicle, you can check the lock
status using the KEYLESS-GO card.
Briefly press the programming
button1.
The indicator lamp for the “Driver’s
door”2 or “Global unlock”3 lights up
in red or green.
Vehicle lock status:
Red Vehicle is locked
Green Vehicle is unlocked
!If you cannot lock or unlock the vehicle
with the KEYLESS-GO card, then either
the batteries of the KEYLESS-GO card
are discharged or the KEYLESS-GO
card is malfunctioning.
Check the batteries of the
KEYLESS-GO card (
page 87) and
replace them if necessary
(
page 294).
or
Use the key to unlock the doors
(page 81) and trunk (
page 82)
as required. Lock the vehicle using
the key (
page 81).
If your KEYLESS-GO card is malfunc-
tioning, contact your authorized
Mercedes-Benz Center.
!If the symbols2 or3 do not light up
during the check, then the batteries of
the KEYLESS-GO card are discharged.
Change the batteries
(page 294).
You can obtain the batteries at any au-
thorized Mercedes-Benz Center.