2004 MERCEDES-BENZ C320 COUPE fog light bulb

278 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
.
FRONT FOGLIGHT, L
CHECK LIGHT!
The left front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
FRONT FOGLIGHT, R
CHECK LIGHT!
The right front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT!
The rear fog lamp is malfunctioning.

Replace the bulb as soon as possible.
HIGH BEAM, L
CHECK LIGHT!
The left high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
HIGH BEAM, R
CHECK LIGHT!
The right high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
LIGHT SENSOR
VISIT WORKSHOP!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp
operation to manual (
page 125).

Switch on headlamps using the
exterior lamp switch.

Visit an authorized Mercedes-Benz
Center as soon as possible.
LICENSE PLATE LIGHT, L
CHECK LIGHT!
The left license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
LICENSE PLATE LIGHT, R
CHECK LIGHT!

The right license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.

293 Practical hints
Replacing bulbs
Replacing bulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies 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:

Rear fog lamp


Tail lamps


Standing lamps
Lamp
Type
1
Additional turn sig-
nal lamps
LED
2
Turn signal lamp
Halogen headlamp
Turn signal lamp
Bi-Xenon* headlamp
1156A
2357A
3
Halogen headlamps:
Low beam
Bi-Xenon* head-
lamps:
Low and high beam
H7 (55W)
D2S-35W
4
Halogen headlamps:
High beam
Bi-Xenon* head-
lamps:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and stand-
ing lamp
W 5 W
5
Fog lamp
HB4/9006
(55 W)

294 Practical hintsReplacing bulbsRear lamps Notes on bulb replacement


Use only 12-volt bulbs of the same type
and with the specified watt rating.


Switch lights off before changing a bulb
to prevent short circuits.


Always use a clean lint-free cloth when
handling bulbs.


Your hands should be dry and free of oil
and grease.


If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.


Have the LEDs and bulbs for the follow-
ing lamps replaced by an authorized
Mercedes-Benz Center.

Additional turn signals in the exteri-
or rear view mirrors


High mounted brake lamp


Xenon lamps


Front fog lamps
Lamp
Type
6
Side marker lamp
5W5
7
High mounted brake
lamp
LED
8
License plate lamps
C5W
9
Brake lamp
P 21 W
Turn signal lamp
PY21W
Tail, parking stand-
ing and side marker
lamp
P21/5W
Rear fog lamp, driv-
er’s side
P21/4W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you

touch or move it when hot


drop the bulb


scratch the bulb
Wear eye and hand protection.
Bec a us e o f hi gh vo lt age in xen o n l am ps , i t i s
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.

296 Practical hintsReplacing bulbsParking and standing lamp bulb
Switch off the lights.

Open the hood (
page 236).

Turn headlamp cover2 to the left and
remove.

Pull out the bulb socket with the bulb.

Pull the bulb out of the bulb socket.

Insert a new bulb in the socket.

Reinstall the bulb socket.

Replace headlamp cover2 and turn to
the right until it engages.Bi-Xenon* headlamps
1Bulb socket for turn signal lamp
2Cover for high beam flasher, parking
and standing lamp3Headlamp cover for Bi-Xenon head-
lamp
4High beam bulb for high beam flasher
5Bulb holder
6Parking and standing lamp
High beam bulb for high beam flasher

Switch off the lights.

Open the hood (
page 236).

Turn headlamp cover2 to the left and
remove.
iIf the inside of the headlamps is fogged
up, switch the lights on for a sufficient
amount of time.
Warning!
G
Do not remove the cover
3
for the
Bi-Xenon headlamp. Because of high voltage
in Bi-Xenon lamps, it is dangerous to replace
the bulb or repair the lamp and its compo-
nents. We recommend that you have such
work done by a qualified technician.

299 Practical hints
Replacing bulbs
1Stop lamp
2Back up lamp
3Turn signal lamp
4Tail, parking, standing and rear fog
lamp (driver’s side)License plate lamp
1Screws

Switch off the lights.

Loosen both screws1 and remove
lamp.

Replace the tubular lamp and reinstall
lamp.

Retighten the screws.

350 Index
Warning lamp 259
Break-in period 222
Bulbs, replacing 293
Additional turn signals 293
Brake lamps 294
Fog lamps 293
Front lamps 293
High beam 293
High mounted brake lamp 294
License plate lamps 294, 299
Low beam 293
Parking lamps 293, 294, 296, 297
Rear fog lamp 294
Rear fog lamps 298
Side marker lamps 294, 298
Standing lamps 293, 294, 296, 297
Tail lamp assemblies 294, 298
Turn signal lamps 293, 294
Button
Audio system 162C
CAC (Customer Assistance Center) 341
Calling up
Range (distance to empty) 134
Service indicator 250
CAN system 341
Capacities
Fuels, coolants, lubricants, etc. 330
Cargo compartment
Lighting 104
Cassette operation
Playing cassettes 172
Cassette player
Operating 116
Catalytic converter 231
CD changer* 175
CD operation 175
CD player
Operating 116
Center console 25Lower part 26
PASS.AIRBAG OFF indicator
lamp 263
Upper part 25
Centigrade
Setting temperature units 123
Central locking
From inside 88
Switch 88
Switching on/off
(control system) 129
Unlocking from inside 88
Central locking switch 88
Changing
Batteries (SmartKey) 290
Key setting 129
Changing CDs 175
Charging
Vehicle battery 308
CHECK ENGINE
malfunction indicator lamp 260
Check gas cap
Message in display 277

359 Index
Starting the engine 45
Unlocking with 30
Kickdown 145, 343
Kilometers/miles in speedometer 124
Km/h or mph in speedometer 124
L
Labels, identification 322
Lamp bulbs, exterior 293
Lamps
Fog lamps 101
Lamps, exterior
Front 293
Light sensor 278
Messages in display 277, 279–??
Rear 294
Lamps, indicator and warning
ABS 258
Airbag Off 61
Battery (SmartKey) 83
Brakes 259CHECK ENGINE 260
Coolant 271
Engine diagnostics 260, 262
ESP 261
Fuel reserve 262
Instrument cluster 261–262
Seat belts 262
Service indicator 249
SRS 57
Turn signals 23
Language
Multifunction display 124
Setting 124
LATCH child seat mounts 70
Folding back 70
Layout of poly-V-belt drive 323
Leather upholstery
Cleaning 256
License plate lamps
Messages in display 278Replacing bulbs 294, 299
Light alloy wheels
Cleaning 254
Technical data 326
Light sensor 278
Lighter see Cigarette lighter 204
Lighting 98
Automatic headlamp mode 99
Combination switch 102
Daytime running lamp mode 100
Exterior lamp switch 98
Fog lamps 101
Front fog lamp 101
High beam flasher 102
High beams 102
Instrument cluster illumination 105
Interior 103
Locator lighting 100
Low beam 98
Manual headlamp mode 99

360 Index
Night security illumination 100
Parking lamps 98
Rear fog lamp 101
Settings (control system) 125
Trunk 104
Limiting the gear range 141
Limp Home Mode 145
Loading 197
Instructions 199
Roof rack 197
Split rear bench seat 197
Locator lighting 100
Setting 126
Lock button 343
Lock buttons 343
Locking 52, 82
Fuel filler flap 233
Global, SmartKey 83
Vehicle in an emergency 289
Loss of keys 84Loss of Service and Warranty
Information Booklet 321
Low beam headlamps
Messages in display 279
Replacing bulbs 293, 295
Lowering
Vehicle 306
Lubricants
Technical data 330
Luggage cover 197
M
Main dimensions 328
Maintenance 249
Vehicles with E85 fuel 335
Malfunction
Displaying 118
Malfunction memory 117
Calling up 117
Manual headlamp mode 99
Manual operations
Fuel filler flap 291Interior lighting control 103
Locking the vehicle 289
Sliding/pop-up roof 292
Unlocking gear selector lever 291
Unlocking the driver’s door 288
Unlocking the trunk lid 289
Manual seat
Adjusting 33
Adjusting backrest tilt 33
Adjusting head restraint height 34
Adjusting head restraint tilt 34, 36
Adjusting seat cushion tilt 33
Adjusting seat height 33
Front seat head restraints 90
Seat fore and aft adjustment 33
Manual transmission 137
Shifting into reverse 138
Starting with 44
MB Tex upholstery
Cleaning 256