2005 MERCEDES-BENZ C320 service

401 Technical terms
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision,
including the tachometer, speedo-
meter, engine temperature display and
fuel gauge.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the
vehicle and should not be used for
normal acceleration needs.
Lock button
Button on the door which indicates
whether the door is locked or
unlocked. Pushing the lock button
down on an individual door from inside
will lock that door.Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.
Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a
gasoline's ability to resist undesired
detonation (knocking). The average of
both the MON (Motor Octane Number)
and ->RON (Research Octane Number)
is posted at the pump, also known as
ANTI-KNOCK INDEX.Multifunction display
Display field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel
Steering wheel with buttons for
operating the control system.
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.

409 Index
High mounted brake lamp 345
License plate lamps 345, 351
Low beam headlamps 345
Parking lamps, front 345, 348, 350
Parking lamps, rear 345, 351
Rear lamps 345
Side marker lamps, front 345, 350
Side marker lamps, rear 345, 351
Standing lamps, front 345, 348, 350
Standing lamps, rear 345, 351
Tail lamp unit 351
Tail lamps 345, 351
Turn signal lamps,
front 345, 348, 350
Turn signal lamps,
rear 345, 351
Button
Audio system 186C
CAC 399
California
Important notice 11
Calling up
Maintenance service indicator 293
Range (distance to empty) 150
CAN system 399
Cargo area see Trunk
Cargo tie-down rings* 240
Catalytic converter 273
CD changer* 201
CD changer* operation 203
CD player*
Operating 129
CD* operation 201
Center console 27
Front passenger front air bag off
indicator lamp 27, 63, 70, 308
Lower part 28
Upper part 27Center console ashtray 245
Centigrade
Setting temperature units 135
Central locking
Automatic 96
From inside 96
Locking from inside 96
Switch 96
Switching on/off
(control system) 145
Unlocking from inside 96
Central locking switch 96
Central unlocking
Switch 96
Unlocking from inside 96
Central unlocking switch 96
Certification label 376
Changing
Batteries (SmartKey) 343
CDs 201
Changing key setting 147

412 IndexD
Date (day)
Setting 140
Date (month)
Setting 139
Date (year)
Setting 141
Daytime running lamp mode 111
Setting 142
Deactivating
Air conditioning (cooling) 181
Air recirculation mode 180
Alarm 84
Anti-theft alarm system* 84
Central locking (control system) 145
Climate control 175
Climate control system 177
Cruise control 232
Defrosting 179
Engine with the SmartKey 56ESP 80
Exterior lamps 110
Exterior lamps delayed shut-off 143
Hazard warning flasher 114
Headlamps 55
Immobilizer 83
Interior lighting delayed shut-off 145
Manual shift program
(C 55 AMG only) 167
Rear window defroster 173
Seat heating* 105
Tow-away alarm* 85
Deep water see Standing water
Defogging
Windshield 178
Defrosting 178
Delayed shut-off
Exterior lamps 143
Interior lighting 145
Dialing
A number (telephone*) 152Difficulties
While driving see
Problems while driving
With starting 47
Digital clock 121
Digital speedometer 127
Direction of rotation (tires) 287
Discharged battery
Jump starting 363
Disconnecting
Vehicle battery 361
Display
Messages in display 319
Display elements
Audio system 184
Displays
Digital speedometer 127
Maintenance service indicator 292
Outside temperature 127
Selecting display for
status indicator 136
Showing vehicle status
messages 131

415 Index
F
Fahrenheit
Setting temperature units 135
Fastening the seat belts 43
Filler neck
C 230 Kompressor
(all models) 282
C 240 (all models), C 320 (all models),
C 55 AMG 282
Fine adjustment
Cruise control 233
First aid kit 329
Flat tire 353
Collapsible tire (C 55 AMG only) 334
Lowering the vehicle 359
Minispare wheel
(except C 55 AMG) 333
Mounting the spare wheel 353
Preparing the vehicle 353
Flexible fuel vehicles 392
At the gas station 275
Switching fuels 393
Flexible Service System see FSSFog lamp, rear
Message in display 325
Replacing bulb 345
Switching on 113
Fog lamps, front
Messages in display 323
Replacing bulbs 345
Switching on 112
Four wheel electronic traction
system (4MATIC) with ESP 82
4MATIC 82
Front air bags 63
Front fog lamps
Indicator lamp 109
Switching on 112
Front lamps
Bi-Xenon* type 349
Halogen-type 347
Messages in display 323–326
Replacing bulbs 345, 347
Switching on 109
Front passenger front air bag off
indicator lamp 27, 63, 70, 308Front seat head restraints
Installing, manual seat 100
Installing, power seat* 101
Manual seat 100
Power seat* 100
Removing, manual seat 100
Removing, power seat* 100
Front seats
Heating* 105
FSS (Flexible Service System)
(Canada vehicles) 292, 400
Fuel 276
Additives 392
Cruising range 393
E85 (Ethanol fuel) 393
Fuel reserve warning lamp 307
Gasoline additives 392
Premium unleaded
gasoline 276, 388, 391
Requirements 391, 392
Switching (Flexible Fuel Vehicle) 393
Technical data 387, 388
Fuel additives 392

418 IndexIgnition 33
Switching on,
automatic transmission* 47
Switching on,
manual transmission 46
Immobilizer 83
Activating 83
Deactivating 83
Indicator lamps see
Lamps, indicator and warning
Infant and child restraint systems 67
Installing 72
LATCH-type child seat anchors 73
Information
About service and warranty 10
Inside door handle 92
Installing
Infant and child restraint systems 72
Ski sack* (Canada only) 237
Towing eye bolt 368
Wiper blades 352Instrument cluster 24, 117, 401
Cleaning 298
Coolant temperature gauge 118
Illumination 117
Lamps in 302–307
Multifunction display 121
Outside temperature indicator 119
Selecting language 136
Instrument lighting 117
Instruments and controls see Cockpit
Interior lighting 115
Activating automatic control 115
Deactivating automatic control 115
Delayed shut-off 145
Manual operation 115
Interior rear view mirror
Adjusting 41
Antiglare 168Interior storage spaces 241
Armrest 242
Cup holder in rear seat armrest 244
Cup holders in front of
seat armrest 243
Glove box 241
Parcel net in
front passenger footwell 245
Intermittent wiping 52
J
Jack 329
Jump starting 363
K
Key 191
Key dependency memory
Settings 147
Key positions in starter switch 33
Key, mechanical 337

419 Index
Key, SmartKey
Battery check lamp 89
Checking the batteries 91
Factory setting 89
Global locking 89
Global unlocking 89
Loss of 91
Messages in display 322
Positions in starter switch 33
Remote control 88
Restoring to factory setting 90
Selective setting 89
Starting the engine,
automatic transmission* 47
Starting the engine,
manual transmission 46
Turning off the engine 56
Unlocking the trunk lid 91
Unlocking with 32
Kickdown 163, 401
Kilometers/miles in speedometer 135
Km/h or mph in speedometer 135L
Labels, identification 376
Lamp bulbs, exterior 344
Lamp sensor
Message in display 324
Lamps, exterior
Front 345
Light sensor 324
Messages in display 323–326
Rear 345
Lamps, indicator and warning
ABS 25, 302
Battery (SmartKey) 89
Brakes 25, 303
Engine diagnostics 304, 307
Engine malfunction 25, 304–305
ESP 25, 306
Front fog lamps 109
Front passenger
front air bag off 27, 63, 70, 308
Fuel reserve 25, 307
High beam headlamps 25Instrument cluster 302–307
Low beam headlamps 25
Maintenance service indicator 292
Rear fog lamp 109
Seat belt telltale 25, 307
SRS 25, 59, 307
Turn signals 25
Language
Multifunction display 136
Setting 136
LATCH-type child seat anchors 73
Folding back 74
Layout of poly-V-belt drive 377
Leather upholstery
Cleaning 299
Lever for voice control system* 23
License plate lamps
Messages in display 324
Replacing bulbs 345
Light alloy wheels
Cleaning 298
Technical data 381, 382

420 IndexLight sensor 324
Lighter see Cigarette lighter
Lighting 109
Automatic headlamp mode 110
Combination switch 113
Daytime running lamp mode 111
Door entry lamps 116
Exterior lamp switch 109
Front fog lamps 112
High beams 113
Instrument cluster illumination 117
Instruments 117
Interior 115
Locator lighting 112
Low beam 109
Manual headlamp mode 110
Night security illumination 112
Parking lamps 109
Rear fog lamp 113
Settings (control system) 141
Standing lamps 109
Trunk lamp 116Limiting the gear range 159
Limp Home Mode 167
Loading 234
Cargo tie-down rings* 240
Instructions 239
Roof rack* 234
Split rear bench seat* 237
Locator lighting 112
Setting 143
Lock button 401
Locking 54, 88
Automatic while driving 96
Centrally from inside 96
Fuel filler flap 275
Global, SmartKey 89
Glove box 241
Vehicle in an emergency 338
Loss of keys 91
Loss of Service and Warranty
Information Booklet 375
Low beam headlamps
Indicator lamp 25
Messages in display 324–325
Replacing bulbs 345, 347
Switching on 49Lowering
Vehicle 359
Lubricants
Technical data 387
M
Main dimensions 385
Main fuse box
In passenger compartment 370
Mainodometer 121
Maintenance 12, 292
Vehicles with E85 fuel 393
Maintenance service
Calling up the maintenance
service indicator 293
Major service (Service B) 292
Minor service (Service A) 292
Overdue 293
Types 293
When due 292
Maintenance service indicator 292
Calling up 293, 294
Clearing 293, 294
Maintenance System
(U.S. vehicles) 292, 401

423 Index
One-touch gearshifting 158
Canceling gear range limit 158
Downshifting 158
Upshifting 158
Opening
Cup holder, in rear seat armrest 245
Doors from the inside 92
Fuel filler flap 276
Fuel filler flap manually 339
Glove box 241
Hood 278
Power tilt/sliding sunroof*
in an emergency 341
Side windows 223
Tilt/sliding sunroof* 227, 341
Tilt/sliding sunroof*
with SmartKey 229
Trunk 91
Trunk from the inside 93
Trunk from the outside 92
Windows 223
Windows with SmartKey 225Operating
Audio system 183
CD player* 129
COMAND* see separate
operating instructions
Navigation system* 130
Radio 128
Radio transmitters 272
Satellite radio* 128
Telephone* 150, 183, 208
Vehicle outside the
USA and Canada 13
Operating safety
Audio system 183
Operator’s Manual 10
Ornamental moldings 297
Outer seats
Rear seat head restraints 101, 103
Outside temperature 127
Outside temperature indicator 119
Overdue maintenance service 293
Overhead control panel 29
Overspeed range 401P
Paintwork 296
Panic alarm* 76
Panic button on SmartKey 76
Parcel net
In front passenger footwell 245
Parking 54, 267
Parking brake 48, 54
Engaging 54
Message in display 315
Releasing 48
Parking lamps
Messages in display 325
Parking lamps, front
Replacing bulbs 345
Parking lamps, rear
Replacing bulbs 345
Parking position*
Exterior rear view
mirrors 108, 148, 170
Parts service 374