2004 MERCEDES-BENZ C320S low beam

310 Practical hintsReplacing bulbs
Replacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp
assemblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
Bulbs Front lamps
iBackup bulbs will be brought into use
when the following lamps malfunction:

Standing lamps


Tail lamps


Rear fog lamp
Lamp
Type
1
Additional turn signal
lamps
LED
2
Turn signal lamp
Halogen
Turn signal lamp
Bi-Xenon*
1156 A
2357 A
3
Halogen headlamps:
Low beam
Bi-Xenon* headlamps:
Low and high beam
H7 (55 W)
D2S-35 W
4
Halogen headlamps:
High beam
Bi-Xenon* headlamps:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamps
W5W
5
Fog lamp
HB4/9006
(55 W)
6
Side marker lamp
W5W

312 Practical hintsReplacing bulbsReplacing bulbs for front lamps
Halogen headlamps
1Bulb socket for turn signal lamp
2Headlamp cover for high beam head-
lamp, parking and standing lamp
3Headlamp cover for low beam head-
lamp4Low beam headlamp bulb
5High beam headlamp bulb
6Bulb socket for parking and standing
lamp bulb
Low and high beam bulb

Switch off the lights.

Open the hood (
page 252).

Press the clamp and remove headlamp
cover2 or3.

Pull electrical connector off.

Unclip the retainer springs and take out
the bulb.

Insert the new bulb so that the base
locates in the recess on the holder.

Clip the retainer springs and plug the
connector onto the bulb.

Align headlamp cover2 or3 and
click into place.
Front turn signal lamp bulb

Switch off the lights.

Open the hood (
page 252).

Twist bulb socket1 counterclockwise
and pull out.

Push bulb into socket, turn counter-
clockwise and remove.

Insert new bulb in socket, push in and
twist clockwise.

Reinsert bulb socket in lamp and twist
clockwise.

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.

371 Index
Bi-Xenon headlamps* 361
Bi-Xenon type*
Front lamp bulbs 313
Block heater 264
Blocking
Rear door window operation 70
Bolts
For Minispare wheel 304
Brake Assist System see BAS
Brake fluid 352
Checking 251
Message in display 286
Brake lamp bulbs 311
Brake lamp, high mounted 311
Brake pads
Message in display 286
Brakes 240
Warning lamp 275
Break-in period 238Bulbs, replacing 310
Additional turn signals 310
Backup lamps 311
Brake lamps 311
Fog lamps 310
Front lamps 310
High beam 310
High beam flasher 310
High mounted brake lamp 311
License plate lamps 311, 315
Low beam 310
Parking lamps 310, 311, 313, 314
Rear fog lamp 311, 315
Rear lamps 311
Side marker lamps 310, 314
Standing lamps 310, 311, 313, 314
Tail lamp assemblies 311, 315
Turn signal lamps 310, 311
Button
Audio system 176C
CAC 361
California
Important notice 11
Calling up
Range (distance to empty) 138
Service indicator 266
CAN system 361
Capacities
Fuels, coolants, lubricants, etc. 349
Cargo area see Trunk
Cassette operation
Playing cassettes 186
Cassette player
Operating 121
Catalytic converter 247
CD changer* 189
CD player*
Operating 120
CD* operation 189

379 Index
Gear selector lever 23, 44
Cleaning 271
Lock 44
Position (Automatic
transmission*) 23, 142, 145
Gearshift lever 43
Global
Locking 83
Unlocking 83
Global Positioning System see GPS
Glove box 21, 216
Closing 216
Opening 216
Good visibility 148
GPS 362
GPS see COMAND*
H
Halogen-type
Front lamp bulbs 312
Hands-free microphone 27
Hard plastic trim items
Cleaning 271Hazard warning flasher 106
Switching off 106
Switching on 106
Head restraints
Front seats
Manual seat 34, 93
Power seat* 35, 94
Rear seats 94
Headlamp cleaning system* 259
Headlamp shut-off delay see Delayed
shut-off, exterior lamps
Headlamps
Automatic control 103
Bi-Xenon* 361
Bi-Xenon* type
Replacing bulbs 313
Cleaning 269
Cleaning system* 148, 259, 358
Halogen-type
Replacing bulbs 312
Refilling washer fluid 259
Switching off 51
Switching on 46
Washer fluid 358Headliner and shelf below rear window
Cleaning 271
Heated seats* 98
Height adjustment
Front seat head restraints
Manual seat 34
Power seat* 35
Rear seat head restraints 94
Seat belts 42
Steering wheel
Adjustment, electrical* 37
Adjustment, manual 37
High beam flasher 47, 106
High beam headlamps
Messages in display 294
Replacing bulbs 310, 312
Switching on 106
High beam headlamps xenon type*
Replacing bulbs 313
High mounted brake lamp 311

382 IndexLighting 102
Automatic headlamp mode 103
Combination switch 105
Daytime running lamp mode 104
Door entry lamps 108
Exterior lamp switch 102
Front fog lamps 105
High beams 106
Instrument cluster illumination 109
Instruments 109
Interior 107
Locator lighting 104
Low beam 102
Manual headlamp mode 103
Night security illumination 104
Parking lamps 102
Rear fog lamp 105
Settings (control system) 129
Trunk lamp 108
Limiting the gear range 144
Limp Home Mode 147Loading 209
Instructions 214
Roof rack* 209
Ski sack* 209
Split rear bench seat* 212
Locator lighting 104
Setting 130
Lock button 363
Locking 50, 82
Automatic while driving 90
Centrally from inside 91
Fuel filler flap 249
Global, SmartKey 83
Separately the trunk 89
Vehicle in an emergency 306
Loss of keys 85
Loss of Service and
Warranty Information Booklet 337
Low beam headlamps
Messages in display 295
Replacing bulbs 310, 312
Lowering
Vehicle 321Lubricants
Technical data 349
M
Main dimensions 347
Maintenance 12, 265
Vehicles with E85 fuel 355
Malfunction
Displaying 122
Malfunction memory 122
Calling up 122
Clearing 122
Manual headlamp mode 103
Manual operations
Fuel filler flap 308
Interior lighting control 107
Locking the trunk 89
Locking the vehicle 306
Sliding/pop-up roof* 309
Unlocking the driver’s door 305
Unlocking the trunk 90, 306
Unlocking transmission
gear selector lever 308

388 IndexReplacing
Backup lamp bulbs 315
Brake lamp bulbs 315
Bulbs 310
Front lamp bulbs 310, 312
Front turn signal bulbs 312, 314
Fuses 334
High beam bulbs 312
High beam bulbs
(xenon-type* headlamps) 313
License plate lamp bulbs 315
Low beam bulbs 312
Parking lamp bulbs 313, 314
Rear fog lamp bulb 315
Rear lamp bulbs 311, 315
Rear turn signal bulbs 315
Side marker lamp bulbs 314
Standing lamp bulbs 313, 314
Wiper blades 316
Reporting
Safety defects 18Research Octane Number see RON
Reset button in the
instrument cluster 23, 123, 124
Resetting
All functions (control system) 123
All functions of a submenu 124
Fuel consumption 137
Service indicator (FSS) 266
Trip odometer 111
Residual heat utilization 171
Residual ventilation 171
REST 171, 364
Restraint system
Message in display 297
Restraint system see
Infant and child restraint systems
Reverse (manual transmission)
Shifting into 141
Rims 342
Roadside Assistance 12
RON 250, 364
Roof rack* 209Rotating wheels 262
Rubber parts
Cleaning 272
S
Safety
Occupant 54
Safety belts see Seat belts
Safety defects
Reporting 18
Safety systems
Driving 72
Searching
Radio station 119
Seat belt force limiter 63
Seat belt height adjustment 42
Seat belts 60
Cleaning 271
Fastening 40
Height adjustment 42
Messages in display 297
Proper use of 42, 62
Safety guidelines 58
Warning lamp 278