sensor MERCEDES-BENZ C240 4MATIC WAGON 2004 S203 Owner's Manual

47 Getting started
Driving
High beam
Push combination switch forward.
The high beam symbolA in the
instrument cluster comes on.
For more information on high beam, see
“Combination switch” (
page 103).
Windshield wipers
The combination switch is located on the
left of the steering column.Combination switch1Single wipe
2Switching on windshield wipers 
Make sure the ignition is switched on.Switching on windshield wipers

Turn the combination switch to the
desired position depending on the
intensity of the rain.
0Windshield wipers off
IIntermittent wiping
IINormal wiper speed
IIIFast wiper speed
iTo signal minor directional changes,
move combination switch to point of
resistance only and release. The turn
signal flashes three times.
iVehicles without rain sensor*:
Fast wiper speedIII goes to settingII
when the vehicle is standing still.
Vehicles with rain sensor*:
Intermittent wiping interval is depen-
dent on wetness of windshield. Wiping
will not occur with a front door open.

48 Getting startedDriving
Single wipe
Press combination switch briefly in
direction of arrow1.
The windshield wipers wipe one time
without washer fluid.
Wiping with windshield washer fluid

Push combination switch in direction of
arrow1 past the resistance point.
The windshield wipers operate with
washer fluid.
For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system*”
(
page 259).
!Vehicles with rain sensor*:
Do not leave windshield wipers in inter-
mittent setting when the vehicle is tak-
en to an automatic car wash or during
windshield cleaning. Wipers will oper-
ate in the presence of water sprayed on
the windshield, and wipers may be
damaged as a result.
The switch should not be left in inter-
mittent setting as the wipers will wipe
the windshield once every time the en-
gine is started. Dust that accumulates
on the windshield might scratch the
glass and/or damage the wiper blades
when wiping occurs on a dry wind-
shield.
!If anything blocks the windshield
wipers (leaves, snow, etc.), switch
them off immediately.

For safety reasons, withdraw
SmartKey from starter switch
before attempting to remove any
blockage.


Remove blockage.


Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI,


set the combination switch to the
next highest wiper speed


have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center

110 Controls in detailInstrument clusterThe temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
the sensor, not by comparison to external
displays (e.g. bank signs, etc.).When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.

145 Controls in detail
Good visibility
Good visibility
Windshield wipers
More information on the windshield wipers
can be found in the “Getting started”
section (
page 47).
Intermittent wiping
Windshield wipers with rain sensor*
A rain sensor automatically controls the
windshield wipers depending on how wet
the windshield is.

Switch on ignition.

Set the wiper switch to positionI
(page 47).
After the initial wipe, pauses between
wipes are automatically controlled by the
rain sensor.
Headlamp cleaning system*
The switch is located on the left side of the
dashboard.
1Headlamp washer switch
Switch on ignition.

Press switch1.
The headlamps are cleaned with a
high-pressure water jet.
For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system*”
(
page 259).
iIntermittent wiping is interrupted when
the vehicle is at a standstill and a front
door is opened.
!Do not leave windshield wipers in
intermittent setting when the vehicle is
taken to an automatic car wash or
during windshield cleaning. Wipers will
operate in the presence of water
sprayed on the windshield, and wipers
may be damaged as a result.
The switch should not be left in
intermittent setting as the wipers will
wipe the windshield once every time
the engine is started. Dust that
accumulates on the windshield might
scratch the glass and/or damage the
wiper blades when wiping occurs on a
dry windshield.

146 Controls in detailGood visibilityRear view mirrors
More information for setting the rear view
mirrors can be found in the “Getting
started” section (
page 38).
Interior rear view mirror, antiglare
position
1Lever

Tilt the mirror to the antiglare night
position by moving lever1 towards
the windshield.Automatic antiglare rear view mirrors*
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when


the ignition is switched on
and


incoming light from headlamps falls on
the sensor in the interior rear view
mirror.The rear view mirror will not react if


reverse gear is engaged


the interior lighting is turned onWarning!
G
The automatic antiglare function does not
react if incoming light is not aimed directly
at sensors in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, when transporting cargo
which covers the rear window.
Glare can endanger you and others.

197 Controls in detail
Power windows

Turn SmartKey in the starter switch to
position1 or2.
Opening the windows

Press switch1 to4 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.
Closing the windows

Pull switch1 to4 to the resistance
point.
The corresponding window will move
upwards until you release the switch.Fully opening the windows
(Express-open)

Press switch1 to4 past the
resistance point and release.
The corresponding window opens
completely.
Fully closing the windows
(Express-close)

Pull switch1 to4 past the
resistance point and release.
The corresponding window closes
completely.
Stopping windows

Press or pull respective switch again.
Warning!
G
If you pull and hold the switch up when
closing the window, and upward movement
of the window is blocked by some obstruc-
tion including but not limited to arms, hands,
fingers, etc., the automatic reversal will not
operate.
!If the upward movement of the window
is blocked during the closing
procedure, the window will stop and
open slightly.
Remove the obstruction, pull the
switch again past the resistance point
and release.
If the window still does not close when
there is no obstruction, then pull and
hold the switch again. The side window
will then close without the obstruction
sensor functionWarning!
G
Driver’s door only:
If within five seconds you again pull the
switch past the resistance point and
release, the automatic reversal will not
function.

246 OperationDriving instructionsControl and operation of radio transmitter
COMAND*, radio and telephone*Telephones* and two-way radios
Radio transmitters, such as a portable
telephone or a citizens band unit should
only be used inside the vehicle if they are
connected to an antenna that is installed
on the outside of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial
control of the pollutants in the exhaust
emissions. Keep your vehicle in proper
operating condition by following our
recommended maintenance instructions
as outlined in your Service Booklet.
Warning!
G
Please do not forget that your primary
responsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit
Management and Data System), radio or
telephone
1 if road, weather and traffic
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every
second.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system,
possibly resulting in an accident and/or
personal injury.
!To prevent damage to the catalytic
converters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat and start a fire.

292 Practical hintsWhat to do if …When the message
ADD 1.0 Qt. ENGINE
OIL WHEN NEXT REFUELING!
(Canada:
1.0 LITER
) appears while the engine is
running and at operating temperature, the
engine oil level has dropped to
approximately the minimum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest
service station where the engine oil should
be topped to the required level with an
approved oil.
Display symbol
Display messages
Possible cause
Suggested solution
:
ENGINE OIL LEVEL
VISIT WORKSHOP!
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 254) and add oil as required
(page 256).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
ENGINE OIL SENSOR
VISIT WORKSHOP!
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz
Center.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

294 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
.
FRONT FOGLIGHT, L
CHECK LIGHT!

The left front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
FRONT FOGLIGHT, R
CHECK LIGHT!

The right front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT!

The rear fog lamp is malfunctioning.

Replace the bulb as soon as possible.
HIGH BEAM, L
CHECK LIGHT!

The left high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
HIGH BEAM, R
CHECK LIGHT!

The right high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
LIGHT SENSOR
VISIT WORKSHOP!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp
operation to manual (
page 121).

Switch on headlamps using the
exterior lamp switch.

Visit an authorized Mercedes-Benz
Center as soon as possible.
LICENSE PLATE LIGHT, L
CHECK LIGHT!

The left license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
LICENSE PLATE LIGHT, R
CHECK LIGHT!

The right license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.

357 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
BabySmart
TM1
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is
installed on the front passenger seat.
The system will automatically deacti-
vate the passenger front airbag when
such a seat is properly installed
(PASS. AIRBAG OFF indicator lamp
located in the center console comes
on). See your authorized
Mercedes-Benz Center for availability.BabySmart
TM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the
passenger front airbag if a
BabySmartTM compatible child seat is
installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking
situations. The system is activated
when it senses an emergency based on
how fast the brake is applied.
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more
intense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service
center, which can help you with any
questions about your vehicle and
provide assistance in the event of a
breakdown.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping depending on
vehicle settings and/or ambient
conditions.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the
passenger compartment needed for
vehicle operation and monitoring.
1BabySmart
TM is a trademark of Siemens
Automotive Corp.