MERCEDES-BENZ C55AMG 2006 W203 Owner's Manual

390 Practical hints
Opening/closing in an emergency
i
Turn crank3 slowly and smoothly.
The tilt/sliding sunroof must be
synchronized after being operated
manually (
page 244).


391 Practical hints
Resetting activated head restraints
Resetting activated head restraints
Resetting activated head restraints
If the active head restraints have been trig-
gered in a rear-end collision, the active
head restraints must be reset. Otherwise,
the active head restraint cannot offer any
additional protection in the event of anoth-
er rear-end collision.
Take the reset tool out of the
Mercedes-Benz vehicle literature
pouch.
Guide reset tool into center of head re-
straint between head restraint cushion
and rear head restraint cover.
Press the reset tool forward in the di-
rection of the arrow.
Press reset tool downward until you
hear the head restraint release
mechanism audibly engage.
Pull out reset tool.
Firmly press the head restraint cushion
back toward the rear head restraint
cover until it engages.
Repeat this procedure on the active
head restraint for the second seat.
For information on active head restraints,
see “Active head restraint” (
page 71).
For information on head restraint adjust-
ment, see “Seats” (
page 35).
i
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.
You will find the reset tool for manually
operating the active head restraints in
the Mercedes-Benz vehicle literature
pouch.
!
Take care to avoid damaging the uphol-
stery.
Warning!G
When pushing back the head restraint cush-
ion, take care that your fingers do not be-
come caught between the head restraint
cushion and the cover. Failing to do so may
lead to injury.

392 Practical hints
Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an
authorized 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.
i
When inserting the batteries, make
sure they are clean and free of lint.
i
When replacing batteries, always
replace both batteries of both
SmartKeys.
The required replacement batteries are
available at any Mercedes-Benz
Center.

393 Practical hints
Replacing SmartKey batteries
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key
(
page 386).
1Mechanical key
2Slide
3Battery compartment
Insert the mechanical key1 in direc-
tion of arrow in side opening.
Using mechanical key1, push gray
slide 2 to unlatch battery compart-
ment 3.
Pull battery compartment3 out of the
housing in direction of arrow.
4Battery
5Contact spring
Remove the batteries4 in direction of
arrow.
Using a lint-free cloth, insert new
batteries4 under the contact
spring5 with the positive terminal (+)
side facing up.
Return battery compartment3 into
housing until it locks into place.
Slide mechanical key1 back into the
SmartKey.
Check the operation of the SmartKey.

394 Practical hints
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.i
If 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.
i
Substitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction
display (
page 374).

395 Practical hints
Replacing bulbs
Bulbs Front lamps
LampType
1Additional turn signal
lampLED
2Halogen headlamp:
Turn signal lamp
Bi-Xenon* headlamp:
Turn signal lamp
1156 A
2357 A
3Halogen headlamp:
Low beam
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Xenon bulbs yourself. Contact an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35 W
LampType
4Halogen headlamp:
High beam/high beam
flasher
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
H7 (55 W)
Parking and standing
lampW5W
5Front fog lampHB4 (51 W)
6Side marker lampW5W

396 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement

Only use 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.
LampType
7High mounted brake
lampLED
8Brake lampP21W
9Turn signal lampPY 21 W
aParking and side
marker lampP 21/5 W
bBackup lampP21W
cLicense plate lampsC5W
dRear fog lamp (driver’s
side only), tail and
standing lampP 21/4 W
Warning!G
Bulbs and bulb sockets can be very hot.
Allow 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.

397 Practical hints
Replacing bulbs
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

Front side marker 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 114).
Open the hood (page 297).
Halogen headlamp
1Housing cover for low beam headlamp
2Housing cover for high beam head-
lamp, parking and standing lamp3Bulb socket for turn signal lamp bulb
4Bulb socket for low beam bulb
5Bulb socket for high beam bulb
6Bulb socket for parking and standing
lamp bulb
i
Have the headlamp adjustment
checked regularly.

398 Practical hints
Replacing bulbs
Low beam bulb
Press the clamp on housing cover1
and remove it.
Pull the electrical connector off.
Turn bulb socket4 counterclockwise
and take out the bulb.
Insert the new bulb so that its socket
locates in the recess of the lamp
housing.
Turn bulb socket4 clockwise until it
engages.
Plug the electrical connector onto the
bulb.
Align housing cover1 and press until
it engages.High beam bulb
Press the clamp on housing cover2
and remove it.
Pull the electrical connector off.
Turn bulb socket5 counterclockwise
and take out the bulb.
Insert the new bulb so that its socket
locates in the recess of the lamp
housing.
Turn bulb socket5 clockwise until it
engages.
Plug the electrical connector onto the
bulb.
Align housing cover2 and press until
it engages.Front turn signal lamp bulb
Turn bulb socket3 with the bulb
counterclockwise and remove it.
Press gently onto the bulb and turn it
counterclockwise out of bulb
socket3.
Press 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
Press the clamp on housing cover2
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 press until
it engages.

399 Practical hints
Replacing bulbs
Bi-Xenon* headlamp
1Housing cover for Bi-Xenon headlamp
2Housing cover for high beam flasher,
parking and standing lamp3Bulb socket for turn signal lamp bulb
4Bulb socket for high beam flasher bulb
5Bulb socket for parking and standing
lamp bulbHigh beam flasher bulb
Press the clamp on housing cover2
and remove it.
Pull the electrical connector off.
Turn bulb socket4 counterclockwise
and take out the bulb.
Insert the new bulb so that its socket
locates in the recess of the lamp
housing.
Turn bulb socket4 clockwise until it
engages.
Plug the electrical connector onto the
bulb.
Align housing cover2 and press until
it engages.
Warning!G
Do not remove the cover1 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.