MERCEDES-BENZ C240 4MATIC WAGON 2003 S203 Manual PDF

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77 Safety and Security
Driving safety systems
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

sand or gravel
The switch is located on the center con-
sole.1ESP off
2ESP on

Press upper half1 of the switch.
The ESP warning lamp
v
in the
speedometer dial comes on. ESP is de-
activated.
If one or more drive wheels are spinning,
the ESP warning lamp
v
, located in the
speedometer 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 the ESP

Press lower half2 of the switch.
The ESP warning lamp
v
in the
speedometer goes out. You are now
again in normal driving mode.
Warning!
G
ESP should not be switched off during nor-
mal driving other than in the circumstances
described below. Disabling of the system
will reduce vehicle stability in standard driv-
ing maneuvers.
!Avoid spinning of a drive wheel for an
extended period with the ESP switched
off. This may cause serious damage to
the drivetrain which is not covered by
the Mercedes-Benz Limited Warranty.Warning!
G
When the ESP warning lamp
v
is
illuminated continuously, the ESP is
switched off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP.
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78 Safety and SecurityDriving safety systemsFour wheel electronic traction system (4MATIC*) with ESP
Only models with all-wheel-drive*
(4MATIC).
The 4MATIC improves vehicle’s ability to
use available traction, e.g. during winter
operation in mountains under snowy con-
ditions, by applying power to all four
wheels.
Warning!
G
If you see the ESP warning lamp
v
flash-
ing in the speedometer dial, proceed as fol-
lows:

While driving off, apply as little throttle
as possible

While driving ease up on the accelerator

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.!Do not tow with one axle raised.
Otherwise the transfer case can be
damaged, which is not covered by the
Mercedes-Benz Limited Warranty.
!Performance testing must only be con-
ducted on a 2-axle dynamometer.
Otherwise the transfer case can be
damaged, which is not covered by the
Mercedes-Benz Limited Warranty.!Because of the ESP’s automatic opera-
t i o n , t h e e n g i n e m u s t b e s h u t o f f ( k e y i n
starter switch position0 or1) when
the parking brake is being tested on a
brake test dynamometer
Active braking action through ESP may
otherwise seriously damage the front
or rear axle brake system.
Operational tests with the engine run-
ning can only be conducted on a 2-axle
dynamometer.
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79 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the key from the starter
switch activates the immobilizer.
Deactivating

Inserting the key in the starter switch
deactivates the immobilizer.
Anti-theft alarm system*
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door

the tailgate

the hood.
The alarm system will also be triggered
when

someone attempts to raise the vehicle

the vehicle is opened with the mechan-
ical key.Arming the alarm system
The alarm system is armed after locking
the vehicle with the remote control. The
turn signal lamps blink three times to indi-
cate that the alarm system is activated.
A red lamp in the switch for the tow-away
alarm will blink after approximately
10 seconds when the alarm system is
completely armed.
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).
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid* sys-
tem (
page 211) provided Tele Aid*
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
iIf the turn signal lamps do not blink
three times, the tow-away sensor* is
malfunctioning or one of the following
elements may not be properly closed:
a door

the tailgate

the hood
Close the respective element and lock
the vehicle again.
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80 Safety and SecurityAnti-theft systemsDisarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the remote con-
trol. The turn signal lamps blink once to in-
dicate that the alarm system is
deactivated.
Canceling the alarm
Insert the key in the starter switch.
or

Press the
Œ
or

button.
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 automatically.
iThe alarm system will rearm automati-
cally after approximately 40 seconds if
one of a door or the tailgate is not
opened.
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 211) provided Tele Aid*
service was subscribed to and properly
activated, and that necessary cellular
service and GPS coverage are avail-
able.
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81 Safety and Security
Anti-theft systems
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 located on the center con-
sole.
1Tow-away alarm off switch
2Indicator lamp

Turn off the ignition and remove the
key.

Press upper half1 of the switch.
Indicator lamp2 in the switch lights up
briefly.

Lock your vehicle with the key.
The tow-away alarm remains disarmed un-
til you lock your vehicle again.
Canceling the alarm

Insert the key in the starter switch.
or

Press the
Œ
or

button on the
key.
iYou cannot disarm the tow-away alarm
if the ignition is turned on.
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82S203 MY03_A.book Page 82 Tuesday, January 28, 2003 2:22 PM

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83 Controls in detail
Locking and unlocking
Seats
Memory function*
Lighting
Instrument cluster
Control system
Manual transmission
Automatic transmission*
Good visibility
Climate control
Automatic climate control*
Audio system
Power windows
Sliding/pop-up roof*
Driving systems
Loading
Useful features
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84 Controls in detailLocking and unlockingIn the “Controls in detail” section you will
find detailed information on how to oper-
ate the equipment installed on your vehi-
cle. If you are already familiar with the
basic functions of your vehicle, this section
will be of particular interest to you.
To quickly familiarize yourself with the ba-
sic functions of the vehicle, refer to the
“Getting started” section of this manual.
The corresponding page numbers are giv-
en at the beginning of each segment.
Locking and unlockingInformation on locking and unlocking can
be found in the “Getting started” section
on (
page 30) and (
page 51).
Keys
Your vehicle comes supplied with two
SmartKeys with remote controls and a re-
movable mechanical key. The locking tabs
for the mechanical key portion of the two
keys are a different color to help distin-
guish each key unit.
The remote control key provides an ex-
tended operating range. To prevent theft,
however, it is advisable to only unlock the
vehicle when you are in close proximity to
it.
The key centrally locks and unlocks:
the doors

the tailgate

the fuel filler flap
SmartKey with remote control1‹
Lock button
2Mechanical key locking tab
3
Œ
Unlock button
4Battery check lamp
5
Â
Panic button (
page 72)
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button*5.
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85 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press button
Œ
.
All turn signal lamps blink once. The
locking knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor tailgate is
opened, the SmartKey is not inserted in
the starter switch, or the central locking
switch is not activated.Global locking

Press button

.
All turn signal lamps blink three times.
The locking knobs in the doors move
down.
Selective setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressing
Œ
only unlocks the driver’s
door and the fuel filler flap.

Press and hold buttons
Œ
and


simultaneously for about five seconds
until battery check lamp4 blinks twice.
The key will then function as follows:
Unlocking driver’s door and fuel filler
flap

Press button
Œ
once.
Global unlocking

Press button
Œ
twice.
Global locking

Press button

.Restoring to factory setting

Press and hold buttons
Œ
and


simultaneously for about six seconds
until battery check lamp4 blinks twice.
iYou can also open and close the power
windows (
page 186) and slid-
ing/pop-up roof (
page 188) using
the SmartKey.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. It is possible for children to open a
locked door from the inside, which could re-
sult in an accident and/or serious injury.
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86 Controls in detailLocking and unlocking
Checking the batteries
Press button

or
Œ
.
Battery check lamp4 lights up briefly
to indicate that the key batteries are in
order.Loss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:

Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the SmartKey are dis-
charged, the key is malfunctioning, or
the vehicle battery is drained.
Check the batteries in the key and
replace them if necessary
(page 287).

Check the vehicle battery
(page 305).

Use the mechanical key to unlock
the doors (
page 285) as required.
Lock the vehicle using the mechan-
ical key (
page 286).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If battery check lamp4 does not light
up briefly during check, then the key
batteries are discharged.
Replace the batteries (
page 287).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
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