49 Getting started
Driving
Single wipe
Press switch briefly in the direction of
arrow1.
The windshield wipers wipe one time
without washer fluid.Wiping with windshield washer fluid
Push switch in the direction of arrow1
past the resistance point.
The windshield wiper operates with
washer fluid.
Rear window wiper/washer
1Interval wiping on/off
2Indicator lamp
3Simultaneous operation of wiper and
washer
Make sure that the ignition is switched
on.
!Vehicles with rain sensor*:
Do not leave in intermittent setting
when 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 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 when wiping occurs on a dry
windshield.
!If leaves, snow, etc. block the wind-
shield wipers, switch off the wipers.
For safety reasons, withdraw key
from starter switch. Remove block-
age.
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.
iThe rear window wiper will also auto-
matically engage if
the windshield wiper is engaged
the gear selector lever is placed
inR “Reverse”
S203 MY03_A.book Page 49 Tuesday, January 28, 2003 2:22 PM
50 Getting startedDrivingInterval wiping
Switching on
Press upper half1 of the switch.
Indicator lamp2 comes on.
Switching off
Press upper half1 of the switch again.
Indicator lamp2 goes out.
Simultaneous wiping and washing
Press and hold lower half3 of the
switch.
The wiper operates with washer fluid.
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.
The coolant temperature is over 248° F
(120° C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.
Check the coolant level and add cool-
ant if necessary (
page 308).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
major assemblies
fuel system
engine mount
Start the engine in the usual manner.
S203 MY03_A.book Page 50 Tuesday, January 28, 2003 2:22 PM
233 Operation
At the gas station
Check regularly and before a long trip
1Coolant level
More information on the coolant level
can be found in the “Operation” section
(
page 238).
2Brake fluid (fuse box cover removed)
More information on brake fluid can be
found in the “Technical data” section
(page 330).
3Windshield washer and headlamp
cleaning system
For more information on refilling the
reservoir, see the “Operation” section
(page 240).Engine oil level
More information on engine oil can be
found in the “Operation” section
(
page 235).
Opening hood (
page 234).
Coolant
For normal replenishing, use water (pota-
ble water quality). More information on
coolant can be found in the “Operation”
section (
page 238).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
the “Practical hints” section (
page 292).
Exterior lamp switch (
page 98).
Tire inflation pressure
More information on tire inflation pressure
can be found in the “Operation” section
(
page 242).
iUse only premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON / 86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet.
Flexible Fuel Vehicles: MY 2003
Mercedes-Benz C320 models, except
those equipped with manual transmis-
sion or 4MATIC*.
More information on Flexible Fuel Vehi-
cles can be found in the “Technical Da-
ta” section (
page 332).
iLeaving the engine running and the fuel
cap open can cause the
?
lamp to
illuminate.
See also “Practical hints” section
(
page 258).
S203 MY03_A.book Page 233 Tuesday, January 28, 2003 2:22 PM
240 OperationEngine compartmentWindshield washer system and headlamp cleaning system
Fluid for the windshield washer system and
the headlamp cleaning system is supplied
from the windshield washer reservoir. It
has a capacity of
Vehicles without headlamp cleaning
system: approx. 3.2 US qt. (3 l).
Vehicles with headlamp cleaning sys-
tem: approx. 6.4 US qt. (6 l).
During all seasons, add MB Windshield
Washer Concentrate “S” to water. Premix
the windshield washer fluid in a suitable
container.
Refill the reservoir with MB Windshield
Washer Concentrate and water (or
commercially available premixed wind-
shield washer solvent / antifreeze, de-
pending on ambient temperatures).Always use washer solvent/antifreeze
where temperatures may fall below
freezing. Failure to do so could result in
damage to the washer system/reser-
voir.
More information can be found in the
“Technical data” section (
page 336).1Washer fluid reservoir
Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite.
You could be seriously burned.
!Only use washer fluid which is suitable
for plastic lenses. Improper washer flu-
id can damage the plastic lenses of the
headlamps.
S203 MY03_A.book Page 240 Tuesday, January 28, 2003 2:22 PM
278 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
#
UNDERVOLTAGE
ENGINE ON!
The battery has insufficient voltage and
can no longer supply the convenience
functions such as seat heater*.
Start the engine (
page 44).
UNDERVOLTAGE
SWITCH CONSUMERS OFF!
The battery is malfunctioning.
Have the battery checked at a ser-
vice station.
G
VISIT WORKSHOP!
DISPLAY DEFECTIVE
The instrument cluster display is mal-
functioning.
Continue driving with added cau-
tion.
Visit an authorized Mercedes-Benz
Center as soon as possible.
±
VISIT WORKSHOP!
DISPLAY DEFECTIVE
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems
checked by an authorized
Mercedes-Benz Center
(page 258).
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about
1/3
of total reservoir capacity.
Add washer fluid (
page 240).
S203 MY03_A.book Page 278 Tuesday, January 28, 2003 2:22 PM
336 Technical dataFuels, coolants, lubricants etc.Windshield and headlamp washer system
Both the windshield and headlamp washer
systems are supplied from the windshield
washer fluid reservoir.
The washer fluid reservoir has a capacity of
approx.
6.4 US qt (6.0 l) in vehicles with head-
lamp cleaning system*
3.2 US qt (3.0 l) in vehicles without
headlamp cleaning system
Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer sol-
vent/antifreeze, depending on ambient
temperatures).Windshield and headlamp washer fluid
mixing ratio
For temperatures above freezing use
MB Windshield Washer Concentrate “S”
and water:
1 part “S” to 100 parts water
[40 ml “S” to 1 gallon (4 l) water].
For temperatures below freezing use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent/antifreeze:
1 part “S” to 100 parts solvent
[40 ml “S” to 1 gallon (4 l) solvent].
Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may burn.
You can be seriously burned.
S203 MY03_A.book Page 336 Tuesday, January 28, 2003 2:22 PM
354 IndexHeadlamp cleaning system 240
Headlamp shut-off delay see Delayed
shut-off, exterior lamps
Headlamps
Automatic control 99
Bi-Xenon type*
Replacing bulbs 295
Cleaning 250
Cleaning system 143, 240
Halogen-type
Replacing bulbs 294
Refilling washer fluid 240
Switching off 52
Switching on 47
Washer fluid 336
Washer system 336
Headliner
Cleaning 252
Heated seats 94
Height adjustment
Head restraints 33, 35, 36
Seat belts 42
Steering wheel 37
High beam flasher 48, 101High beam headlamps
Messages in display 273
Replacing bulbs 292, 294
Switching on 101
High beam headlamps xenon type
Replacing bulbs 295
High mounted brake lamp 293
Hood 234
Closing 235
Message in display 271
Opening 234
Hydroplaning 226
I
Identification labels 320
Certification label 320
Vehicle identification number
(VIN) 320
Ignition 31
Switching on 44, 45
Immobilizer 79
Activating 79
Deactivating 79
Infant and child restraint systems 65
Installing 69
LATCH child seat anchors 70Information
About service and warranty 10
Button for Tele Aid* 214
Inside rear view mirror
Adjusting 38
Antiglare 141
Automatic antiglare 141
Installing
Infant and child restraint systems 69
Parcel net in cargo compartment 196
Towing eye bolt 313
Twin-reel roller blind 199
Wiper blades 299
Instrument cluster 22, 104, 341
Cleaning 251
Coolant temperature gauge 104
Illumination 104
Lamps in 254–258
Multifunction display 107
Outside temperature indicator 106
Selecting language 120
Instruments and controls see Cockpit 20
Integrated remote control
Canadian programming 220
Erasing memory 220
Hand-held transmitter 219S203 MY03_A.book Page 354 Tuesday, January 28, 2003 2:22 PM
358 Index
Tailgate 277
Tele Aid* 277
Telephone* 277
Washer fluid 278
Multifunction steering wheel 24, 108,
341
Buttons 108
N
Navigation system
Operating 114
See separate COMAND* operating in-
structions
Network provider 131
Night security illumination 100
Setting 122
O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 40
Infant and child restraint systems 65
LATCH child seat anchors 70
Seat belts 40, 59
Odometer, main 23Oil
Adding 236
Checking level 235
Consumption 235
Dipstick 235
Filler neck 236
Oil level
Checking 233
One-touch gearshifting 136
Canceling gear range limit 136
Downshifting 136
Upshifting 136
Opening
Ashtray 207
Doors from the inside 88
Fuel filler flap 232
Fuel filler flap manually 288
Glove box 203
Hood 234
Side windows 185
Sliding/pop-up roof 187, 290
Sliding/pop-up roof in an
emergency 290
Sliding/pop-up roof with
SmartKey 188
Tailgate 87Windows 184
Windows with SmartKey 186
Operating
Audio system 161
Cassette player 114
CD player 113
COMAND* see separate operating in-
structions
Garage door opener 220
Integrated remote control 220
Navigation system 114
Radio 113
Radio transmitter 230
Safety 16
Telephone 161
Telephone* 131, 178
Vehicle outside the USA and
Canada 13
Operating safety 16
Audio system 161
Operator’s Manual 10
Ornamental moldings 250
Outer seats
Rear seat head restraints 92
Outside temperature indicator 106
Overdue service 246
S203 MY03_A.book Page 358 Tuesday, January 28, 2003 2:22 PM