MERCEDES-BENZ C230 COUPE 2003 CL203 Owner's 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.

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

Switch off the lights.

Open the hood (
page 226).

Turn headlamp cover2 or 3 to the left
and remove.

Turn bulb holder with bulb to the left
and pull out.

Pull out the bulb from the base (do not
pull on glass tube).

Insert new bulb so that the base fits in
the bulb holder recess and is level.

Place the bulb holder with bulb on the
headlamp mounting and turn the bulb
holder to the right until it engages.

Replace headlamp cover2 or 3 and
turn to the right until it engages.
Front turn signal lamp bulb

Switch off the lights.

Open the hood (
page 226).

Turn bulb socket1 to the left and pull
out.

Push bulb into socket, turn to the left
and remove.

Insert new bulb in socket, push in and
turn to the right.

Reinsert bulb socket in lamp and turn
to the right.

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

Open the hood (
page 226).

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
2Headlamp cover for high beam head-
lamp3Headlamp cover for Bi-Xenon head-
lamp
4High beam bulb
5Bulb holder
6Parking and standing lamp
High beam bulb

Switch off the lights.

Open the hood (
page 226).

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 cover3 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.


284 Practical hintsReplacing bulbs
Turn bulb holder5 with bulb to the left
and pull out.

Pull out bulb from the base (do not pull
on glass tube).

Insert new bulb so that the base fits in
the bulb holder recess and is level.

Place the bulb holder with bulb on the
headlamp mounting and turn bulb hold-
er to the right until it engages.

Replace headlamp cover2 and turn to
the right until it engages.Front turn signal lamp bulb

Switch off the lights.

Open the hood (
page 226).

Turn bulb socket1 to the left and pull
out.

Push bulb into socket, turn to the left
and remove.

Insert new bulb in socket, push in and
turn to the right.

Reinsert bulb socket in lamp and turn
to the right.Parking and standing lamp bulb

Switch off the lights.

Open the hood (
page 226).

Turn headlamp cover2 to the left and
remove.

Pull out the bulb socket6 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.

285 Practical hints
Replacing bulbs
Side marker lamp bulb
Switch off the lights.

Carefully slide lamp towards rear.

Remove front end first.

Twist bulb socket counterclockwise
and pull out.

Pull bulb out of the bulb socket.

Insert new bulb in socket.

Reinstall bulb socket, push in and twist
clockwise.

To reinstall lamp, set rear end in
bumper and let front end snap into
place.
Replacing bulbs for rear lamps
Tail lamp assemblies
Switch off the lights.

Open the trunk lid (
page 85).

Turn handles2.

Remove the trim panel1.

Press together the latches1.

Remove bulb holder.

Gently push bulb into socket, turn
counterclockwise and remove.

Insert new bulb and reinstall bulb sock-
et.

Reinstall trim panel.

286 Practical hintsReplacing bulbs1Stop 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.

287 Practical hints
Replacing wiper blades
Replacing wiper blades
Removing
Fold the wiper arm forward.

Press safety tab down2.

Push wiper blade downward1 and re-
move.Replacing wiper blade insert

Place wiper blade on firm support.

Press down both tabs.

Slide (direction of arrow) the wiper
blade insert out of the retainer claws.

Slide (direction of arrow) the new wiper
blade insert into retainer claws until
tabs are engaged.
Installing
Slide wiper blade onto wiper arm until
it locks in place.
Warning!
G
For safety reasons, remove key from starter
switch before replacing a wiper blade, other-
wise the motor could suddenly turn on and
cause injury.
!Never open the hood when the wiper
arm is folded forward.
Do not allow the wiper arms to contact
the windshield glass without a wiper
blade inserted.
Make certain that the wiper blades are
properly installed. Improperly installed
wiper blades may cause windshield
damage.
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.

288 Practical hintsFlat tire
Flat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Engage the steering wheel lock in the
straight ahead position and set the
parking brake.

Move the selector lever toP (manual
transmission to 1st or reverse gear).

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel Preparing the vehicle
Prepare the vehicle as described under
“Preparing the vehicle” on this page.

Take the spare wheel out of the trunk
(page 271).
Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:

Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted, en-
sure proper tire pressure and do not exceed
vehicle speed of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.


289 Practical hints
Flat tire
When changing wheel on a hill:
Place chocks on the downhill side
blocking both wheels of the other axle.

Take the two-piece wheel wrench and
the jack out of the vehicle tool kit
(page 272). Assemble wheel wrench.

On whee l to b e change d, loos en b ut do
not yet remove the wheel bolts (ap-
proximately one full turn with wrench).
The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.1Jack
2Crank
3Take-up bracket

Place jack on firm ground.

Position jack1 under the take-up
bracket3 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an in-
cline.

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while vehi-
cle is raised.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

290 Practical hintsFlat tireRemoving the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and re-
move.

Replace this wheel bolt with the align-
ment bolt1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.

Take the spare tire out of the trunk.
Mounting the new wheel
1Wheel bolt for light alloy rims
2Wheel 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 bolts2 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 bolts2 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.