2008 MERCEDES-BENZ CLK350 page 92

443 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
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 an authorized
Mercedes-Benz Center for headlamp
adjustment.iIf the headlamps or front fog lamps are
fogged up on the inside as a result of high
humidity, driving the vehicle a distance with the
lights on should clear up the fogging.
iBackup bulbs will be brought into use when
lamps malfunction. Read and observe the
messages in the multifunction display
(
page 411).

446 Practical hints
Replacing bulbs
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 129).
Open the hood (page 323).
Front lamps halogen-type
1Housing cover for low beam headlamp
2Housing cover for high beam head-
lamp, parking and standing lamp3Bulb 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 bulb
Low 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 with the bulb in
the lamp and turn clockwise.
Align housing cover2 and turn it
clockwise.

448 Practical hints
Replacing bulbs
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 socket1 counterclockwise
and remove it.
Press gently onto the bulb and turn
counterclockwise out of bulb
socket1.
Press the new bulb gently into bulb
socket1 and turn clockwise until it
engages.
Place bulb socket1 back into the
lamp and turn it clockwise.
Parking and standing lamp bulb
Turn housing cover2 counterclock-
wise and remove it.
Pull out bulb socket5 with the bulb.
Pull the bulb out of the bulb socket5.
Press the new bulb into bulb socket5.
Press bulb socket5 back into the
lamp.
Align housing cover2 and turn it
clockwise.
Additional turn signal lamps
The additional turn signal lamps in the ex-
terior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to func-
tion, the entire turn signal unit must be re-
placed. Have the additional turn signal unit
replaced at an authorized Mercedes-Benz
Center.
Front side marker lamp
Since replacing the side marker lamp bulbs
is a technically highly demanding process,
we recommend you have the side marker
lamp bulbs replaced at an authorized
Mercedes-Benz Center.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 129).
Tail lamp unit
Open trunk lid.
Swing the trim panel covering the
corresponding rear lights to the side.
1Connector
2Tab
Disconnect electrical connector1.


449 Practical hints
Replacing bulbs
Pull tab2 in the direction of the
arrow.
Remove the bulb carrier.
1Brake lamp
2Backup lamp
3Rear fog lamp (driver’s side)/tail lamp
4Tail lamp, parking and standing lamp,
side marker lamp
5Turn signal lamp
Press gently onto the respective bulb
and turn counterclockwise out of its
bulb socket.
Press the new bulb gently into its bulb
socket and turn clockwise until it
engages.
Reinstall the bulb carrier.
Let tab2 (
page 448) engage.
Connect the electrical connector1
(
page 448) until it engage.
Reinstall trim panel.License plate lamp
1Screws
2License plate lamp
Loosen both screws1.
Remove the license plate lamp2.
Replace the tubular lamp.
Reinstall the license plate lamp2.
Retighten the screws1.

452 Practical hints
Flat tire
The CLK 63 AMG is equipped with a
TIREFIT kit.
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
Turn on the hazard warning flasher
(
page 135).
Turn the steering wheel so that the
front wheels are in a straight ahead
position.
Set the parking brake (page 59).
Move the gear selector lever toP.
Vehicles with SmartKey:
Turn off the engine (page 60).
Remove the SmartKey from the starter
switch.Vehicles with SmartKey with
KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* start/stop button on the
gear selector lever once (
page 60).
Open the driver’s door (with driver’s
door open, starter switch is now in
position0, same as with SmartKey re-
moved from starter switch). The driv-
er’s door then can be closed again.
Have any passenger exit the vehicle at
a safe distance from the roadway.Sealing tires with TIREFIT
(CLK 63 AMG only)
Small tire punctures, particularly those in
the tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient tempera-
tures down to -4°F (-20°C).
iOpen door only when conditions are safe to
do so.
Warning!G
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage caused by driving with extremely
low tire inflation pressure, or on a flat tire, or
a damaged wheel.
Do not drive the vehicle under such circum-
stances.
Contact the nearest Mercedes-Benz Center
for assistance or call Roadside Assistance.

453 Practical hints
Flat tire
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Take TIREFIT, the sticker, and the
electric air pump out of the trunk
(
page 422).
Two-part sticker
1Sticker for instrument cluster
2Sticker for wheel
Attach sticker part 1 where it will be
easily seen by the driver on the instru-
ment cluster.
Attach sticker part 2 to the damaged
tire (close to the tire valve).
Warning!G
Take care not to allow the contents of
T I R E F I T t o c o m e i n c o n t a c t w i t h h a i r , e y e s o r
clothing. TIREFIT is harmful if inhaled,
swallowed or absorbed through the skin -
causes skin, eye and respiratory irritation.
Any contact with eyes or skin should be
flushed immediately with plenty of water.
If clothing comes in contact with TIREFIT,
change clothing as soon as possible.
In case of allergic reaction or rash, consult a
physician immediately.
Warning!G
Keep TIREFIT out of reach of children.
If swallowed, rinse mouth immediately with
plenty of water and drink plenty of water.
Do not induce vomiting!
Consult a physician immediately.
Keep away from open flame or heat source.
iIf sealant has leaked out, let it dry. You can
then peel it off.
Warning!G
Observe safety instructions on air pump
label.
iYour vehicle may be equipped with either of
two versions of the electric air pump:

Version 1
The air hose with pressure gauge and the
electrical plug are located behind a flap.

Version 2
The pressure gauge is located in the pump
housing.
The following description applies to both
versions. Differences in usage are expressly
declared.

455 Practical hints
Flat tire
Version 1
aVent screw
bPressure gauge
Close vent screwa on pressure
gaugeb (version 1 only).
Screw filler hose8 onto tire valve9.
Insert electrical plug4 into the ciga-
rette lighter (
page 290) or the power
outlet in the rear passenger compart-
ment (
page 291).
Turn the SmartKey in the starter switch
to position1 (
page 38).
Vehicles with KEYLESS-GO*:
Press the KEYLESS-GO* start/stop
button (
page 40) on the gear se-
lector lever once. Do not depress
brake pedal.
PressI on electric air pump switch3.
The electric air pump is switched on
and inflates the tire.
Let the electric air pump inflate the tire
for approximately 5 minutes.
The pressure gauge must display at
least 26 psi (1.8 bar). The air hose can
become hot during inflation.
Please exercise appropriate caution.
If the tire inflation pressure of at least
26 psi (1.8 bar) is not attained, turn off
the electric air pump by pressing0 on
electric air pump switch3
(
page 454).
Detach filler hose8 from tire valve9
(
page 454).
Drive vehicle back and forth very slowly
approximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.
Unscrew the air pump’s air hose5
from flange6 of TIREFIT container1
(
page 454).
Screw air hose5onto tire valve9.
Inflate the tire again.
iFirst, the sealing is pumped into the tire. The
pressure may briefly rise to up to 73 psi (5 bar).
This is normal and not an indication of a malfunc-
tion. Do not switch off the electric air pump.
!Do not operate the electric air pump longer
than 6 minutes without interruption. Otherwise it
may overheat.
You may operate the air pump again after it has
cooled off.


456 Practical hints
Flat tire
After attaining a tire inflation pressure
of 26 psi (1.8 bar), press0 on electric
air pump switch3 (
page 454).
The electric air pump is switched off.
Turn the SmartKey in the starter switch
to position0 (
page 38).
Vehicles with KEYLESS-GO*:
Press the KEYLESS-GO* start/stop
button (
page 40) on the gear
selector lever twice. Do not depress
brake pedal.
Detach the electric air pump.
The air hose may still be hot. Please
exercise appropriate caution.
Place the electrical air pump back in
the trunk.
Close the trunk.
Drive off immediately.
The TIREFIT sealant will distribute itself
evenly inside the tire.
After driving the vehicle for an initial
10 minutes, check the tire inflation
pressure using pressure gauge b on
the air pump.
Warning!G
If a tire inflation pressure of 26 psi (1.8 bar)
is not attained, the tire is too severely
damaged for TIREFIT to provide a reliable
tire repair.
In this case, TIREFIT cannot properly seal
the tire.
Do not drive the vehicle.
Contact the nearest Mercedes-Benz Center
or call Roadside Assistance.
Warning!G
Do not exceed vehicle speed of
50 mph (80 km/h). A TIREFIT repair is not
designed to operate at higher speeds.
The sticker must be attached on the instru-
ment cluster where it will be easily seen by
the driver.
Vehicle handling characteristics of a TIREFIT
repaired tire may change. Adapt your driving
accordingly.