tire MERCEDES-BENZ C320 2004 W203 Service Manual

360 Technical dataConsumer informationTemperature
The temperature grades are A (the
highest), B, and C, representing the tire’s
resistance to the generation of heat and its
ability to dissipate heat when tested under
controlled conditions on a specified indoor
laboratory test wheel. Sustained high
temperature can cause the material of the
tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden
tire failure. Grade C corresponds to a level
of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning!
G
The temperature grade for this tire is
established for a tire that is properly inflated
and not overloaded. Excessive speed,
underinflation, or excessive loading, either
separately or in combination, can cause
excessive heat build-up and possible tire
failure.

361 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.

365 Technical terms
Tele Aid* System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and
manual emergency, roadside assis-
tance and information. Tele Aid is
initially activated by completing a
subscriber agreement and placing an
acquaintance call.
The Tele Aid system is operational
provided that the vehicle’s battery is
charged, properly connected, not
damaged and cellular and GPS
coverage is available.Telematics*
A combination of the terms “tele-
communications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is
approved.Traction
Force exerted by the vehicle on the
road via the tires.
VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system*
Voice control system for car phones,
portable cell phones and audio
systems (radio, CD, etc.).

368 Index
Head restraint height, front seats
Manual seat 34
Power seat* 35
Head restraint height, rear seats 94
Head restraint tilt, front seats
Manual seat 34
Power seat* 36
Head restraint tilt, rear seats 96
Head restraints, rear seats
Folding back 95
Folding back with release
switch 95
Placing upright 95
Instrument cluster illumination 109
Interior rear view mirror 38
Manual seat 33
Mirrors 38
Multicontour seat* 97
Power seat* 35
Rear seat head restraints 94Seat belt height 42
Seat cushion depth 97
Seat cushion tilt
Manual seat 33
Power seat* 35
Seat fore and aft adjustment
Manual seat 33
Power seat* 35
Seat height
Manual seat 33
Power seat* 35
Seats 32
Steering column height,
electrical* 38
Steering column height,
manual 37
Steering column length,
electrical* 38
Steering column length,
manual 37
Steering wheel 36Air conditioning (cooling)
Turning off
Automatic climate control* 170
Climate control 160
Turning on
Automatic climate control* 170
Climate control 160
Air conditioning refrigerant 352
Air distribution
Adjusting
Automatic climate control* 166
Climate control 157
Air pressure see Tire inflation pressure
Air recirculation mode
Activating
Automatic climate control* 167
Climate control 158
Deactivating
Automatic climate control* 168
Climate control 159

372 IndexCenter console 25
Lower part 26
PASS. AIRBAG OFF
indicator lamp 279
Upper part 25
Centigrade
Setting temperature units 127
Central locking
Automatic 90
From inside 91
Switch 91
Switching on/off
(control system) 133
Unlocking from inside 91
Central locking switch 91
Certification label 338
Changing
Batteries (SmartKey) 307
CDs 189
Key setting 133
Charcoal filter 169Charging
Vehicle battery 324
CHECK ENGINE
malfunction indicator lamp 276
Checking
Brake fluid 251
Coolant level 251, 257
Engine oil level 251, 254
Tire inflation pressure 251
Vehicle lighting 251
Child safety 63
Airbags 56
Infant and child restraint
systems 60, 63
LATCH-type child seat anchors 69
Child safety switch see
Blocking of rear door window operation
Child seat anchors
see LATCH-type child seat anchors
Cigarette lighter 221Cleaning
Cloth upholstery 272
Cup holder 271
Gear selector lever 271
Hard plastic trim items 271
Headlamps 148
Headliner and shelf below
rear window 271
Instrument cluster 270
Leather upholstery 271
Light alloy wheels 270
MB Tex upholstery 272
Plastic and rubber parts 272
Seat belts 271
Steering wheel 271
Upholstery 271
Windows 270
Windshield 48
Wiper blades 270
Wood trims 272

375 Index
Defrosting
Automatic climate control* 167
Climate control 158
Delayed shut-off
Exterior lamps 131
Interior lighting 132
Dialing
A number (telephone*) 140
Difficulties
While driving
see Problems while driving
With starting 44
Digital speedometer 118
Direction of rotation (tires) 261
Discharged battery
Jump starting 326
Disconnecting
Vehicle battery 324
Display
Messages in display 290
Display elements
Audio system 174Displays
Digital speedometer 118
Messages 280
Selecting 129
Service indicator 265
Showing malfunctions 122
Symbol messages 284
Text messages 281
Distance to empty (range)
Calling up 138
Door control panel 28
Door entry lamps 108
Door handle 28
Door unlock
With Tele Aid* 230
Doors
Message in display 290
Opening from inside vehicle 85
Opening from the outside 83
Downhill driving
Cruise control 207Downshifting
Automatic transmission* 143
Manual transmission 141
Drink holder see Cup holder
Drinking and driving 239
Driving
Driving abroad 246
General instructions 40, 239
Hydroplaning 242
In winter 244
Problems 49
Safety systems 72
Through standing water 245
Driving abroad 246
Driving instructions 239
Driving off 241
Driving safety systems
4MATIC 77
ABS 72
BAS 73
ESP 74
Driving systems 206
Cruise control 206
Driving safety systems 72

377 Index
ETD 63, 362
Safety guidelines 58
Ethanol fuel
At the gas station 249
Requirements 354
Switching fuels 354
Exterior lamp switch 46, 102
Exterior lamps
Delayed shut-off 131
Exterior rear view mirrors
Adjusting 38
Parking position* for 136
F
Fahrenheit
Setting temperature units 127
Fastening the seat belts 40
Filler neck
C 230 Kompressor Sport 256
C 240, C 320, and C 32 AMG 256Fine adjustment
Cruise control 208
First aid kit 300
Flat tire 317
Lowering the vehicle 321
Minispare wheel 302
Mounting the Minispare wheel 317
Preparing the vehicle 317
Flexible fuel vehicles 354
At the gas station 249
Switching fuels 354
Flexible Service System see FSS
Fog lamp, rear
Message in display 294
Replacing bulb 311
Switching on 105
Fog lamps, front
Messages in display 294
Replacing bulbs 310
Switching on 105Four wheel electronic traction
system (4MATIC) with ESP 77
4MATIC 77
Front airbags 59
Front lamps
Bi-Xenon* type 313
Halogen-type 312
Messages in display 293–296
Replacing bulbs 310, 312
Switching on 102
Front seat head restraints
Installing
Manual seat 93
Power seat* 94
Manual seat 93
Power seat* 94
Removing
Manual seat 93
Power seat* 94
Front seats
Heating* 98

389 Index
Seat cushion depth
Adjusting 97
Seat heating*
Switching off 98
Switching on 98
Seats 92
Adjusting 32
Easy entry/exit feature* 92
Heating* 98
Manual seat 33
Multicontour seat* 97
Power seat* 35
Split rear bench seat* 212
Selecting
Display 129
Selector lever see gear selector lever
Self-test
BabySmart
TM
airbag deactivation system 66
Tele Aid* 224Service
Calling up the service indicator 266
Major service (Service B) 265
Minor service (Service A) 265
Overdue 265
Spare parts 336
Types 265
When due 265
Service and Warranty Booklet
Loss of 337
Service and warranty information 10
Service indicator 265
Calling up 266
Clearing 265, 266
Service life (tires) 261
Service see Maintenance
Service System see FSSSetting
Convenience functions 125, 133
Cruise control 207
Daytime running lamp mode 129
Higher speed in cruise control 208
Hours (clock) 126
Individual vehicle settings 123
Instrument lighting 109
Interior lighting delayed shut-off 132
Key dependent memory 135
Lamps and lighting
(control system) 129
Language, multifunction display 128
Locator lighting 130
Lower speed in cruise control 208
Miles/kilometers in
speedometer 128
Minutes (clock) 126
Night security illumination 131
Parking position* for exterior
rear view mirrors 136
Speed in cruise control 208

393 Index
Technical data
Air conditioning refrigerant 352
Brake fluid 352
Coolant 350
Coolants 356
Electrical system 346
Engine oil additives 352
Engine oils 352
Flexible fuel vehicles 354
Fuel requirements 353
Fuels 350
Gasoline additives 354
Lubricants 349
Main dimensions 347
Premium unleaded gasoline 353
Rims and tires 342
Weights 348
Windshield washer 351
Windshield washer and headlamp
cleaning* system 351, 358Tele Aid* 223
Emergency calls 224
Information 227
Initiating an emergency call
manually 226
Message in display 299
Remote door unlock 230
Roadside assistance 226
SOS button 226
Stolen vehicle tracking services 230
System self-check 224
Tele Aid System 223, 365
Upgrade signals 229
Telematics* 365
Telephone* 24, 222
Answering a call 139
Dialing a number from
the phone book 140
Emergency call 198
Ending a call 139
Hands-free microphone 27Loading phone book 140
Message in display 299
Operation 138, 193
Redialing 140
Signal strength 139
Temperature
Display mode 127
Grades of tires 360
Setting interior temperature
Automatic climate control* 165
Climate control 156
Setting units in display 127
Tires 262
Tightening torque
(Wheel bolts) 321, 365
Tilt
Head restraint
Manual seat 34
Power seat* 36
Time
Setting hours 126
Setting minutes 126

394 IndexTime display
Setting 127
Tire inflation pressure
Checking 251, 261
Tire speed rating 243, 365
Tire traction 243
Tires 260, 342
Consumer information 359
Direction of rotation 261
Driving instructions 242
Retreads 260
Rims and tires 342
Service life 261
Temperature 262
Temperature grades 360
Tread depth 263
Wear pattern 262
Winter 263
Tools 300Tow-away alarm* 25, 79
Arming 80
Disarming 80
Disarming for transport 80
Towing eye bolt (vehicle tool kit)
Installing 331
Towing the vehicle 328
Tracking services
For stolen vehicle 230
Traction 147, 359, 365
Transmission gear selector lever
Unlocking manually 308
Transmission see
Automatic* or Manual transmission
Tread depth (tires) 263
Tread Wear 359
Trip computer 136
Trip odometer
Resetting 111Trunk
Auxiliary fuse box 334
Closing the lid 87
Lamp 108
Opening 84
Opening from inside vehicle 87
Separately locking 89
Separately unlocking 90
Trunk lid emergency release 88
Trunk lid
Closing 87
Emergency release 88
Message in display 299
Turn signal lamps
Replacing bulbs 310, 311
Turn signals 47
Additional in mirrors 310
Cleaning lenses 269
Front bulbs 310, 312, 314
Indicator lamps 23
Rear bulbs 311, 315
Turning off
Engine 52