MERCEDES-BENZ S350 2006 W221 Owner's Manual

390 Practical hintsUnlocking/locking in an emergencyFuel filler flap
In case the central locking system does
not release the fuel filler flap, you can open
it manually.
1Release knob
Open the trunk.

Remove the trim inside the trunk on the
right-hand side.

Pull release knob1 in the direction of
arrow.
The fuel filler flap can be opened.

391 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Tilt/sliding sunroof
You can open or close the tilt/sliding sun-
roof manually should an electrical malfunc-
tion occur.
The tilt/sliding sunroof drive is located be-
hind the lens of the interior overhead light.
1Lens

Pry off lens1 using a flat blade screw-
driver (
page 384).

Switch on the ignition (
page 34).

Take the crank from the operator’s
manual pouch.
2Crank

Insert crank2 through hole.

Turn crank2 clockwise to:

slide sunroof closed


raise roof at the rear

Turn crank2 counterclockwise to:

slide sunroof open


lower roof at the rear
iTurn crank2 slowly and smoothly.
The tilt/sliding sunroof must be syn-
chronized after being operated manual-
ly (
page 214).

392 Practical hintsReplacing SmartKey batteriesIf the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* 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.
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey (
page 388).1Mechanical key
2Slide
3Battery compartment

Insert mechanical key1 in the 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 the direction of arrow.
Warning!
G
Batteries contain poisonous and corrosive
substances. Therefore 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.iThe required replacement batteries are
available at any authorized
Mercedes-Benz Center.iWhen changing batteries, always re-
place both batteries.

393 Practical hints
Replacing SmartKey batteries
4Battery
5Contact spring
Remove the batteries4 in the direc-
tion of arrow.

Using a lint-free cloth, insert new
batteries4 under the contact
spring5 with the positive terminal (+)
side facing up.

Return battery compartment3
(page 392) into housing until it locks
into place.

Slide mechanical key1 (
page 388)
back into the SmartKey.

Check the operation of the SmartKey.
SmartKey with KEYLESS-GO*
Replacement battery: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey with KEYLESS-GO
(page 388).

Remove battery compartment3
(page 392) out of the housing.
1Battery
2Tilt battery up
3Mechanical key

Using mechanical key3, apply pres-
sure to position2.
Battery1 tilts up slightly.

Pull out battery1 in the direction of
arrow.

Using a lint-free cloth, insert new
battery1 with the plus (+) side facing
up.

Return battery compartment3
(page 392) into housing until it locks
into place.

Slide mechanical key1 (
page 388)
back into the SmartKey with
KEYLESS-GO.

Check the operation of KEYLESS-GO.

394 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 ad-
justment.
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 the following lamps malfunc-
tion:

Brake lamps


Rear parking lamps


Rear turn signal lamps


Tail lamps
Observe the messages in the multi-
function display (
page 369).

395 Practical hints
Replacing bulbs
Bulbs Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamp
LED
2
Halogen headlamp:
Low beam
H7-55 W
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 Bi-Xenon bulbs yourself. See an au-
thorized Mercedes-Benz Center.
D2S-35 W
3
Turn signal lamp
2357 A
4
Fog lamp
H7-55 W
5
Parking and standing
lamp
W5W
6
Side marker lamp
W5W
7
Halogen headlamp:
High beam/high beam
flasher lamp
H7-55 W
Bi-Xenon* headlamp:
High beam flasher
H7-55 W
Lamp
Type
8
Brake lamp
LED
9
Turn signal lamp
PY 21 W
a
Tail and standing lamp,
side marker
P 21/4 W
b
Backup lamp
P21W
c
License plate lamp
C5W
d
Tail lamp, rear fog lamp
(driver’s side only)
P 21/4 W
e
High mounted brake
lamp
LED

396 Practical hintsReplacing bulbsNotes 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.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center.


Additional turn signal lamps in the exte-
rior rear view mirrors


Bi-Xenon lamps*


High mounted brake lamp


Brake lamps


Rear side marker lamps


Rear parking lamps
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.
iHave the headlamp adjustment
checked regularly.

397 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 M
(page 50).

Open the hood (
page 287) (except
for side marker lamps).
1Headlamp cover for fog lamp
2Headlamp cover for high beam halogen
headlamp bulb, parking and standing
lamp
3Headlamp cover for Bi-Xenon* (low and
high beam) or halogen (low beam)
headlamp bulb4Bulb socket for fog lamp
5Bulb socket for parking and standing
lamp
6Electrical connector for high beam
halogen headlamp bulb
7Electrical connector for low beam
headlamp bulb
8Bulb socket for turn signal lampReplacing low beam bulbs
Bi-Xenon* headlamp
Warning!
G
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. We rec-
ommend that you have such work done by a
qualified technician.

398 Practical hintsReplacing bulbsHalogen headlamp
Press the tab on cover3 and remove
cover.

Pull connector7 off of the lamp.

Release the retaining springs and take
out the bulb.

Insert the new bulb in the socket so
that the base is in the recess on the
lower left.

Attach the retaining springs.

Insert connector7 into the bulb.

Press cover3 onto the housing until
the tab engages.Replacing halogen high beam bulbs

Press the tab on cover2 and remove
cover.

Pull connector 6 off of the bulb.

Apply pressure on the bulb contacts
from above until the bulb releases from
the retaining springs.

Remove bulb.

Insert the new bulb in the socket with
the marking facing upward.

Press the bulb upward on the contacts
until it engages in the retaining springs.

Insert connector6 onto the bulb.

Press cover2 onto the housing until
the tab engages.Front turn signal lamp bulb

Turn bulb socket8 counterclockwise
and pull out.

Gently push bulb into socket, turn
counterclockwise and remove.

Insert new bulb in socket, push in and
twist clockwise.

Reinstall bulb socket in lamp and twist
clockwise until it engages.

399 Practical hints
Replacing bulbs
Parking and standing lamp bulb
Press the tab on cover2 and remove
cover.

Pull out the bulb socket5 with the
bulb.

Pull the bulb out of the bulb socket5.

Insert a new bulb in the bulb socket5.

Reinstall the bulb socket5.

Press cover2 onto the housing until
the tab engages.Side marker lamp bulb

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
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to M
(page 50).

Open the trunk (
page 103).