2003 MERCEDES-BENZ C320 COUPE door lock

301 Practical hints
Towing the vehicle
Warning!
G
With the engine not running, there is no
power assistance for the braking and steer-
ing systems. In this case, it is important to
keep in mind that a considerably higher de-
gree of effort is necessary to brake and
steer the vehicle. Adapt your driving accord-
ingly.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the key in starter switch
position2, the vehicle doors lock if the
left front wheel as well as the right rear
wheel are turning at vehicle speeds of
approx. 9 mph (15 km/h) or more.
Switch off the tow-away alarm
(page 79).
To prevent the vehicle doors from lock-
ing, deactivate the automatic central
locking (
page 122).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to vehicle chassis,
frame or suspension parts.
iIf the battery is disconnected or dis-
charged

the key will not turn in the starter
switch. See notes on the battery
(page 294) or on jump starting
(page 297).


the selector lever will remain
locked in positionP. See notes on
manual unlocking of gear selector
lever (
page 277).

327 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
TM
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed (indicator
lamp
7
in the center console lights
up). 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 pas-
senger side airbag if a BabySmart
TM
compatible child seat is installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. 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 in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.

329 Technical terms
GPS*
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
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 vehi-
cle and should not be used for normal
acceleration needs.
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each key.
Menu
The control system displays are ar-
ranged in menus. Each menu contains
a number of commands for particular
systems. In the Audio menu, for exam-
ple, you will find the commands
Select
radio station
or Operate CD player
.
Using commands you can directly
change the settings for your vehicle.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. 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 AN-
TI-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 operat-
ing the control system.
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

338 Index
Front fog lamps 120
Hazard warning flasher 99
Headlamps 52
Immobilizer 78
Interior lighting delayed shut-off 121
Rear window defroster 147, 156
Residual heat 158
Seat heater 92
Tow-away alarm 80
Deep water see Standing water 221
Defogging
Windshield 145, 153
Defrosting 146, 154
Delayed shut-off
Exterior lamps 120
Interior lighting 121
Dialing
A number (telephone) 128
Difficulties
While driving see Problems while
driving 50
With starting 45
Digital speedometer 110
Direction of rotation (tires) 234
Discharged battery
Jump starting 297Disconnecting
Vehicle battery 295
Display
Selecting 118
Display elements
Audio system 160
Displays
Digital speedometer 110
Messages 229, 252
Selecting 118
Service indicator 238
Showing malfunctions 113
Distance to empty (range)
Calling up 125
Door control panel 27
Door handle 27
Door unlock
With Tele Aid* 208
Doors
Message in display 260
Opening from inside vehicle 85
Opening from outside 83
Downhill driving
Cruise control 190
Downshifting 131, 133
Drink holder see Cup holder 196Drinking and driving 215
Driving
Aquaplaning 219
General instructions 41, 215
In winter 220
Problems 50
Safety systems 73
Through standing water 221
Driving abroad 221
Driving instructions 215
Driving off 217
Driving safety systems
ABS 73
BAS 74
ESP 75
Driving systems 189
Cruise control 189
Driving safety systems 73
E
Easy-entry/exit feature 89
Activating 123
Interrupting movement 123
Electrical fuses 303
Electrical system
Technical data 314

339 Index
Electronic Stability Program
see ESP 23, 75, 328
Emergency call
Telephone 179
Emergency call system* 201
Emergency calls
Initiating an emergency call 204
With Tele Aid* 202
Emergency operation
(Limp Home Mode) 137
Emergency operations
Closing sliding/pop-up roof 278
Locking the vehicle 275
Opening sliding/pop-up roof 278
Remote door unlock 208
Unlocking the vehicle 274
Emergency release
Trunk lid 86
Emergency tensioning device
see ETD 64, 328
Emission control 223
Emission control label 308
Ending
A call (telephone) 128
Engine
Compartment 226Message in display 250
Starting with automatic transmission
45
Starting with manual transmission 44
Starting with the key 45
Technical data 310
Turning off with the key 52
Engine cleaning 242
Engine compartment 226
Fuse box in 303
Hood 226
Engine malfunction indicator lamp 23, 250
Engine number 328
Engine oil 227, 319
Adding 228
Additives 319
Checking level 227
Consumption 227
Display messages 262
Filler neck 228
Messages in display 229, 262
Viscosity 328
Engine oil level see Oil level 225
ESP 23, 75, 328
Messages in display 260
Switching off 76Switching on 77
Warning lamp 246
ETD 328
Safety guidelines 60
ETD (Emergency tensioning device) 64
Exterior lamp switch 96
Exterior lamps
Delayed shut-off 120
Exterior rear view mirror
Activating parking position 140
Exterior rear view mirrors
Adjusting 40
Parking position for 124
F
Fahrenheit
Setting temperature units 117
Fastening the seat belts 41
Fine adjustment
Cruise control 191
First aid kit 271
Flat tire 288
Inflating the spare tire 292
Lowering the vehicle 291
Mounting the spare wheel 288
Preparing the vehicle 288
Spare wheel 271

340 IndexFlexible Service System (FSS) 238, 328
Fog lamp, rear 98, 281
Fog lamps
Replacing bulbs 280
Fog lamps, front
Messages in display 266
Replacing bulbs 281
Switching on 98
Front airbags 61
Front lamps
Bi-Xenon type 283
Halogen-type 282
Messages in display 264–267
Replacing bulbs 280, 282
Switching on 96
Front seat backrest
Folding backrest back 36
Folding backrest forward 35
Front seat head restraints
Installing 90
Manual seat 90
Power seat* 90
Removing 90
Front seats
Heater 91
FSS (Flexible Service System) 238, 328Fuel 225
Additives 321
Fuel reserve warning lamp 250
Gasoline additives 321
Premium unleaded gasoline 225, 318,
320
Requirements 320
Reserve warning 23
Technical data 317
Fuel additives 321
Fuel consumption statistics
After start 125
Since last reset 125
Fuel filler flap 224
Locking 224
Opening 277
Unlocking 224
Fuel requirements 320
Fuel reserve tank
Message in display 263
Fuel tank
Capacity 318
Filler flap 224
Fuels, coolants, lubricants etc.
Capacities 317Functions (control system) 106, 109
Resetting 115
Fuse box 303
Fuse chart 303
Fuse extractor 304
Fuses 303
Auxiliary fuse box in trunk 304
Fuse box in engine compartment 303
Fuse box in passenger compartment
303
Fuse chart 303
Fuse extractor 304
G
Garage door opener 26, 209
Erasing in remote control 212
Integrated remote control 210
Rolling code programming 211
Gasoline see Fuel 225
Gasoline additives 321
Gear range 328
Automatic transmission 134
Limiting 134
Shifting into optimal 133
Gear range limit
Canceling 133

344 IndexMalfunction
Displaying 113
Malfunction memory 112
Calling up 112
Manual headlamp mode 97
Manual operations
Fuel filler flap 277
Interior lighting control 100
Locking the vehicle 275
Sliding/pop-up roof 278
Unlocking the driver’s door 274
Unlocking the trunk lid 275
Unlocking transmission selector lever
277
Manual seat
Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 33
Adjusting head restraint tilt 34
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 90
Seat fore and aft adjustment 33
Manual transmission 130
Shifting into reverse 131
Starting with 44MAXCOOL maximum cooling 154
MB Tex upholstery
Cleaning 244
Mechanical key 274, 275
Memory function 93, 329
Recalling positions from memory 94
Storing exterior rear view mirror park-
ing positions 95
Storing key dependent settings 94
Menus 106
AUDIO 110
Control system 329
In control system 108, 109
Malfunction memory 112
NAV 112
Settings menu 114
Standard display 110
Submenus 107
TEL* 126
Trip computer 125
Microphone
Hands-free microphone 26
Miles/kilometers in speedometer
Setting 117Mirrors
Adjusting 39
Automatic antiglare for rear view mirror
138
Exterior rear view mirror 40
Exterior rear view mirror parking posi-
tions 124
Inside rear view mirror 39
Storing exterior rear view mirror park-
ing position 95
MON 225
MON (Motor Octane Number) 329
Mph or km/h in speedometer 117
Multifunction display 105, 329
Selecting language 118
Standard display 109
Multifunction display messages
ABS 253
BAS 254
Battery 270
Brake fluid 256
Brake pads 256
Check engine 250
Coolant 258
Coolant level 257
Display 270

347 Index
Problems
While driving 50
Program mode selector switch 330
Automatic transmission 136
Q
Quick search
Phone book* 128
R
Radio
Selecting stations 111
Station search 111
Station selection setting 122
Radio mode 165
Radio see Radio mode
Radio transmitters, control
and operation 222
Range (distance to empty)
Calling up 126
Rapid seat heating
Switching on 92
Reading lamp 26
Rear bench seat
Foldable 192Rear fog lamp 281
Bulb 281
Switching on 98
Rear lamp bulbs
Replacing 285
Rear lamps see Tail lamps
Rear passenger compartment
Adjustable air outlets 149, 158
Rear seat head restraints 91
Adjusting 36
Folding back 37
Installing 91
Placing upright 37
Removing 91
Rear seats
Adjusting head restraint height 37
Rear view mirror automatic antiglare 138
Rear view mirrors see Mirrors
Rear window defroster 147, 156
Activating 147, 156
Deactivating 147, 156
Reconnecting
Vehicle battery 295
Refrigerant
Air conditioner 319
Regular checks 225Reinstalling vehicle battery 295
Remote controls
Integrated 210
SmartKey 82
Remote door unlock
With Tele Aid* 208
Remote Vehicle Diagnostics 330
Removing
Vehicle battery 295
Wheel 290
Wiper blade insert 287
Wiper blades 287
Replacing
Backup lamp bulbs 285
Brake lamp bulbs 285
Bulbs 280
Front lamp bulbs 282
Front turn signal bulbs 282, 283
High beam bulbs 282
High beam bulbs (xenon-type head-
lamps) 283
License plate lamp bulbs 286
Low beam bulbs 282
Parking lamp bulbs 283, 284
Rear fog lamp bulbs 285
Rear lamp bulbs 281, 285