MERCEDES-BENZ C COUPE 2005 CL203 Owner's Manual

380 Practical hintsUnlocking/locking in an emergencyThe release button is on the right-hand
side of the luggage compartment behind
the side trim.
1Side trim
2Release button
Open the trunk lid.

Remove the side trim1 from the
right-hand side of the luggage compart-
ment.

Turn release button2 clockwise as far
as will go.
The fuel filler flap is released.

Open the fuel filler flap from outside.Manually unlocking the gear selector
lever
In the case of power failure the gear selec-
tor lever can be manually unlocked, e.g. to
tow the vehicle.
Slide out the swiveling cup holder
(page 256).
1Tool

Insert a tool1 (e.g. flat blade screw
driver) into the opening.

Perform the following two steps
simultaneously:

Press tool1 forward in the direc-
tion of the arrow.

Move gear selector lever from
positionP.

Remove tool1 from the opening.iThe gear selector lever is locked again
when moving it to positionP.

381 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Panorama roof with power tilt/sliding panel*
You can open or close the tilt/sliding panel
manually should an electrical malfunction
occur.
The tilt/sliding panel drive is located be-
hind the lens of the interior overhead light.
Remove SmartKey from starter switch.

Pry off lens1 using a flat blade screw-
driver.

Slide both locking tabs2 in direction
of arrow.

Lower the rear of cover and remove.

Remove the cover.

Take the crank3 out of the Operator’s
Manual pouch.

Insert crank3 through hole.

Turn crank3 clockwise to:

slide roof closed


raise roof at the rear

Turn crank3 counterclockwise to:

slide roof open


lower roof at the rear
The tilt/sliding panel must be resynchro-
nized after being operated manually
(
page 246).
iDo not disconnect electrical connec-
tors.

382 Practical hintsReplacing SmartKey batteriesIf the batteries in the SmartKey are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen inserting the batteries, make
sure they are clean and free of lint.iWhen changing batteries, always
replace both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.

383 Practical hints
Replacing SmartKey batteries
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1
(page 377).
1Mechanical key
2Battery compartment

Insert mechanical key1 in side
opening and push grey slide.
Battery compartment2 is unlatched.

Pull the battery compartment2 out of
the key housing in direction of arrow.

Remove the batteries.
3Battery
4Contact spring

Using a lint-free cloth, insert new
batteries3 under contact spring4
with the plus (+) side facing up.

Return battery compartment into the
housing until it locks in place.

Slide mechanical key1 back into the
SmartKey.

Check the operation of the SmartKey.

384 Practical hintsReplacing bulbsSafe 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 an authorized
Mercedes-Benz Center for headlamp
adjustment.
Bulbs
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction dis-
play (
page 366).

385 Practical hints
Replacing bulbs
Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamps
LED
2
Halogen headlamp: Turn
signal lamp
Bi-Xenon* headlamp:
Turn signal lamp
1156 A
2357 A
3
Halogen headlamps:
Low beam
1
Bi-Xenon* headlamp:
Low and high beam
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon bulbs yourself. See an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35 W
Lamp
Type
4
Halogen headlamps:
High beam/high beam
flasher
Bi-Xenon* headlamps:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lamps
W5W
5
Fog lamp
Front fog lamp with
cornering fog lamp
HB4 (51 W)
H7 (55 W)
6
Side marker lamp
W5W
Lamp
Type
7
High mounted brake
lamp
LED
8
License plate lamps
C 5 W
9
Brake lamp
P 21 W
Turn signal lamp
PY21W
Tail, parking, standing
and side marker lamp
P21/5W
Rear fog lamp (only
driver’s side)
P21/4W

386 Practical hintsReplacing bulbs
Notes on bulb replacement

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


Switch lights off before replacing 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 following
lamps replaced by an authorized
Mercedes-Benz Center.


Additional turn signals in the exterior
rear view mirrors


High mounted brake lamp


Xenon* lamps


Front fog lamps
Replacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 110).

Open the hood (
page 291) (except
for side marker lamps).
Halogen headlamps
Left headlamp, mirror-image of right
headlamp1Housing cover for low beam headlamp
2Housing cover for high beam head-
lamp, parking and standing lamp
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
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.

387 Practical hints
Replacing bulbs
3Bulb socket for turn signal lamp bulb
4Bulb holder of low beam bulb
5Bulb holder of high beam bulb
6Bulb socket for parking and standing
lamp bulbLow beam bulb

Turn housing cover1 counterclock-
wise and remove it.

Turn bulb holder4 with the bulb coun-
terclockwise and remove it.

Pull the bulb at its socket out of bulb
holder4.

Insert the new bulb so that its socket
locates in the recess of bulb holder4
and is level to it.

Reinsert bulb holder4 with the bulb in
the lamp and turn clockwise.

Align housing cover1 and turn it
clockwise.High beam bulb

Turn housing cover2 counterclock-
wise and remove it.

Turn bulb holder5 with the bulb coun-
terclockwise and remove it.

Pull the bulb at its socket out of bulb
holder5.

Insert the new bulb so that its socket
locates in the recess of bulb holder5
and is level to it.

Reinsert bulb holder5 w i t h t h e b u l b i n
the lamp and turn clockwise.

Align housing cover2 and turn it
clockwise.

388 Practical hintsReplacing bulbsFront turn signal lamp bulb
Turn bulb socket3 counterclockwise
and remove it.

Press gently onto the bulb and turn
counterclockwise out of bulb
socket3.

Press the new bulb gently into bulb
socket3 and turn clockwise until it
engages.

Place bulb socket3 back into the
lamp and turn it clockwise.Parking and standing lamp bulb

Turn housing cover2 counterclock-
wise and remove it.

Pull out bulb socket6 with the bulb.

Pull the bulb out of bulb socket6.

Press the new bulb into bulb socket6.

Press bulb socket6 back into the
lamp.

Align housing cover2 and turn it
clockwise.Bi-Xenon* headlamps
Warning!
G
Do not remove the cover
1
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.

389 Practical hints
Replacing bulbs
Left headlamp, mirror-image of right
headlamp1Housing cover for Bi-Xenon headlamp
2Housing cover for high beam flasher,
parking and standing lamp3Bulb socket for turn signal lamp
4Bulb holder for high beam flasher
5Bulb socket for parking and standing
lamp bulb
High beam bulb for high beam flasher

Turn housing cover2 counterclock-
wise and remove it.

Turn bulb holder4 with the bulb coun-
terclockwise and remove it.

Pull the bulb at its socket out of bulb
holder4.

Insert the new bulb so that its socket
locates in the recess of bulb holder4
and is level to it.

Reinsert bulb holder4 w i t h t h e b u l b i n
the lamp and turn clockwise.

Align housing cover2 and turn it
clockwise.
Front turn signal lamp bulb

Turn bulb socket3 with the bulb
counterclockwise and remove it.

Press gently onto the bulb and turn
counterclockwise out of bulb
socket3.

Press the new bulb gently into bulb
socket3 and turn clockwise until it
engages.

Place bulb socket3 back into the
lamp and turn it clockwise.