warning light MERCEDES-BENZ C CLASS COUPE 2003 Service Manual

281
Practical hints
Replacing bulbs
Rear 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 light
up, 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
7
High mounted brake
lamp
LED
8
License plate lamps
C5W
9
Brake lamp
P 21 W (21W)
Turn signal lamp
PY21W (21W)
Tail, parking stand-
ing and side marker
lamp
W5W (5W)
Rear fog lamp, driv-
er’s side
P21W (21W)
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.
Because of high voltage in xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.

283
Practical hints
Replacing bulbs
Parking and standing lamp bulb
Switch off the lights.

Open the hood (
page 226).

Turn headlamp cover
2 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 cover 2 and turn to
the right until it engages. Bi-Xenon* headlamps
1 Bulb socket for turn signal lamp
2 Headlamp cover for high beam head-
lamp 3
Headlamp cover for Bi-Xenon head-
lamp
4 High beam bulb
5 Bulb holder
6 Parking and standing lamp
High beam bulb

Switch off the lights.

Open the hood (
page 226).

Turn headlamp cover 2 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-Xe-
non lamps, it is dangerous to replace the
bulb or repair the lamp and its components.
We recommend that you have such work
done by a qualified technician.


290 Practical hintsFlat tireRemoving the wheel1 Alignment bolt
Unscrew upper-most wheel bolt and re-
move.

Replace this wheel bolt with the align-
ment bolt 1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.

Take the spare tire out of the trunk.
Mounting the new wheel
1 Wheel bolt for light alloy rims
2 Wheel bolt for light alloy spare wheel
rim size 4
1/2B x15 H2

Clean contact surfaces of wheel and
wheel hub.

Guide the spare wheel onto the align-
ment bolt and push it on.

Insert wheel bolts and tighten them
slightly.

Inflate the spare tire using the electric
pump (
page 292).
!Do not place wheel bolts in sand or dirt.
This could result in damage to the bolt
and wheel hub threads.
!Wheel bolts 2 must be used when
mounting spare wheel rim
size 4
1/2B x 15 H2 (
page 313).
The use of any wheel bolts other than
wheel bolts 2 for spare wheel rim
size 4
1/2B x15 H2 can cause physical
damage to the vehicle.
Warning!
G
Be sure to use original lenght wheel bolts
when remounting the original wheel after it
has been repaired.Warning!
G
Inflate spare wheel with collapsible tire only
after the wheel is properly mounted.
Inflate the spare wheel tire using the electric
air pump before lowering the vehicle.


291
Practical hints
Flat tire

Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Lowering the vehicle

Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.

Remove the jack.
1-5 Wheel bolts

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of 80 ft lb
(110 Nm).
!To avoid paint damage, place wheel flat
against hub and hold it there while in-
stalling first wheel bolt.Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect mounting bolts or improperly
tightened mounting bolts can cause the
wheel to come off. This could cause an acci-
dent. Be sure to use the correct mounting
bolts.
Warning!
G
Use only genuine equipment
Mercedes-Benz wheel bolts. They are identi-
fied by the Mercedes star. Other wheel bolts
may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.


292 Practical hintsFlat tire
Before storing the jack in the trunk, it
should be fully collapsed, with handle
folded in.Inflating the spare tire

Take the electric air pump out of the
trunk.
1 Flap
2 Air hose with pressure gauge and vent
screw
3 Union nut
4 Electrical plug
Please exercise appropriate caution

Open flap 1 on air pump.

Pull out electrical plug 4 and air hose
with the pressure gauge 2.
Observe instructions on air pump label.

Remove the valve cap from valve.

Screw the air hose 2 on to the tire
valve.

Insert electrical plug 4 into vehicle cig-
arette lighter socket.

To switch on the air pump turn the key
in the starter switch to position 1
(page 31).

Operate air pump until the pressure
gauge displays 36 psi (2.5 bar)
This takes about five minutes for the
space tire. The air hose 2 and the union
nut 3 can become hot during inflation.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
80 ft lb (110 Nm).
Warning!
G
Observe instructions on air pump label.


298 Practical hintsJump startingThe battery is located in the engine com-
partment on the right hand side. The
terminals for jump starting are located in
front of the battery.
Make sure that the two vehicles do not
touch.

Turn off the engine.
On both vehicles:

Turn off all electrical consumers.

Apply parking brake.

Shift selector lever to position P (man-
ual transmission to Neutral). 1
Positive terminal of charged battery
2 Positive under hood terminal in front of
discharged battery
3 Negative terminal of charged battery
4 Negative under hood terminal in front
of discharged battery

Connect positive terminal 1 of the
charged battery with under hood
terminal 2 in front of the discharged
battery with the jumper cables. Clamp
cable to charged battery 1 first.

Start engine of the vehicle with the
charged battery and run at idle speed.

Connect negative terminal 3 of the
charged battery with under hood
terminal 4 in front of the discharged
battery with the jumper cables. Clamp
cable to charged battery 3 first.

Start the engine of the disabled vehi-
cle.
After the engine has started, you can again
turn on the electrical consumers. Do not
turn on the lights under any circumstanc-
es.

Remove the jumper cables first from
negative terminals 3 and 4 and then
from positive terminals 1 and 2.

Have the battery checked at the
nearest authorized Mercedes-Benz
Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 231).
!Vehicles with automatic transmission:
Do not tow-start the vehicle.

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.

335
Index
Program mode selector switch 136
Selector lever position 132
Starting with 45
Transmission fluid 229
Winter program mode 136
Auxiliary fuse box 304
B
BabySmart
TM
Airbag deactivation system 67
Compatible child seats 67, 327
Self-test 68
BabySmart
TM airbag deactivation system
327
Backrest Folding forward 193
Folding rearward 193
BAS 74, 327 Messages in display 254
Batteries, SmartKey Changing 276
Check lamp 83
Checking 84
Battery discharged Jump starting 297 Battery, vehicle 231, 294
Charging 295
Disconnecting 295
Messages in display 270
Reconnecting 295
Reinstalling 295
Removing 295
Bi-Xenon headlamps* 327
Bi-Xenon type Front lamp bulbs 283
Block heater 237
Bolts For spare wheel 273
Brake assist system (BAS) 327
Brake fluid 225, 319
Brake lamp bulbs 281
Brake lamp, high mounted 281
Brake pads Message in display 256
Brakes 216 Warning lamp 249
Break-in period 214
Bulbs, replacing 280 Additional turn signals 280
Brake lamps 281
Fog lamps 280 Front lamps 280
High beam 280
High mounted brake lamp 281
License plate lamps 281, 286
Low beam 280
Parking lamps 280, 281, 283, 284
Rear fog lamp 281
Rear fog lamps 285
Side marker lamps 280, 285
Standing lamps 280, 281, 283, 284
Tail lamp assemblies 281, 285
Turn signal lamps 280, 281
Button Audio system 162
C
CAC (Customer Assistance Center) 327
Calling up Range (distance to empty) 126
Service indicator 239
CAN system 327
Capacities Fuels, coolants, lubricants, etc. 317
Cargo compartment Lighting 101
Casette mode Playing cassettes 168

337
Index
Cockpit 20, 327
Cockpit management and data system
(COMAND*) 328
Collapsible tire 328
COMAND* 328
COMAND* see separate operating instructions
Combination switch 99 High beam flasher 48, 99
Turn signals 47
Windshield wipers 48
Consumer information 325
Control and operation of radio transmitters 222
Control system 105, 328 AUDIO menu 110
Convenience submenu 123
Display digital speedometer 110
Functions 106, 109
Instrument cluster submenu 116
Lighting submenu 119
Malfunction memory menu 112
Menus 108, 109, 329
Multifunction display 105
Multifunction steering wheel 106
NAV menu 112 Selecting radio system 111
Settings menu 114
Standard display menu 110
Submenus 107, 109
TEL* menu 126
Trip computer menu 125
Vehicle submenu 122
Convenience submenu 123 Activating easy-entry/exit feature 123
Setting key dependency 124
Setting parking position for exterior rear view mirror 124
Coolant 229, 321 Adding 230
Anticorrosion/antifreeze quantity 322
Capacities 317
Checking level 229
Messages in display 257, 258
Temperature 223
Temperature gauge 102
Warning lamp 258
Coolant level Checking 225, 229
Cruise control 189, 328 Canceling 190
Driving downhill 190 Driving uphill 190
Fine adjustment 191
Saving current speed 190
Setting speeds 191
Cruise control lever 189
Cup holder Cleaning 243
In front seat armrest 196
Customer Assistance Center (CAC) 327
D
Daytime running lamp mode 98 Setting 119
Deactivating Air conditioning (cooling) 148
Air recirculation mode 147, 155
Alarm 79
Anti-theft alarm system 79
Automatic climate control 151
Central locking (control system) 122
Climate control 143
Cruise control 190
Defrost 146, 154
Engine with the key 53
ESP 76
Exterior lamps 97
Exterior lamps delayed shut-off 120

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 297 Disconnecting
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 196 Drinking 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