lock MERCEDES-BENZ S430 2006 W221 Owner's Manual

388 Practical hintsUnlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey or KEYLESS-GO*, open the
driver’s door and the trunk using the me-
chanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key

Move locking tab1 in the direction of
arrow.

Slide mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking

Insert the mechanical key into the driv-
er’s door lock until it stops.

Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking the driver’s door and/or the
trunk with the mechanical key will trig-
ger the anti-theft alarm system.
To cancel the alarm, insert the
SmartKey or SmartKey with
KEYLESS-GO* in the starter switch.

389 Practical hints
Unlocking/locking in an emergency
Unlocking the trunk
A minimum height clearance of 6 ft.
(1.85 m) is required to open the trunk lid.
The trunk lid lock is located next to the
handle above the rear license plate recess.
1Unlocking and opening
Insert the mechanical key into the
trunk lid lock until it stops.

Turn the mechanical key counterclock-
wise to position1.
The trunk opens.

Turn the mechanical key back and re-
move it from the trunk lid lock.
Locking the vehicle
If you cannot lock the vehicle with the
SmartKey or the SmartKey with
KEYLESS-GO*, do the following:
Close the front passenger door, the
rear doors and the trunk lid.

Press the central locking switch in the
center console (
page 113).

Check to see whether the locking
knobs on the doors have moved down.

If necessary, push them down manual-
ly.
Except for the driver’s door, the vehicle
should now be locked.
1Locking

Remove the mechanical key out of the
SmartKey (
page 388).

Insert the mechanical key into the driv-
er’s door lock until it stops.

Turn the mechanical key clockwise to
position1.
The driver’s door is locked.
!The trunk lid swings open upwards au-
tomatically. Always make sure that
there is sufficient overhead clearance.

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.

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).

400 Practical hintsReplacing bulbsTail lamp unitPassenger side1Black socket:
Backup lamp
2Red socket:
Driver’s side: Tail, parking and rear fog
lamp
Passenger side: Tail and parking lamp
3Red socket:
Tail, standing and parking lamp
4White socket:
Turn signal lamp

Driver’s side: Turn the locking knob and
move the trim to the side.

Passenger side: Fold the trim to the
side.

Turn bulb socket counterclockwise and
pull out.

Gently twist bulb counterclockwise and
pull out of bulb holder.

Insert new bulb into the holder and turn
it clockwise.

Reinstall bulb socket.
The bulb socket should audibly click.

Driver’s side: Replace the trim and se-
cure with lock.

Passenger side: Reinstall the trim. License plate lamp
1Screws

Loosen both screws1.

Remove the license plate lamp.

Replace the bulb.

Reinstall the license plate lamp.

Retighten screws1.

402 Practical hintsReplacing wiper bladesInstalling wiper blades
Slide the wiper blade onto wiper arm
until it locks in place

Rotate the wiper blade into position
parallel to wiper arm.

Fold the wiper arm backward to rest on
the windshield. Make sure you hold
onto the wiper when folding the wiper
arm back.
!Never open the hood when the wiper
arm is folded forward.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
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.