MERCEDES-BENZ ML350 2006 W163 Owner's Manual

440 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 Light Truck 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 mechanical key1
(page 435).1Mechanical key
2Slide
3Battery compartment

Insert the mechanical key1 in direc-
tion of arrow in side opening.

Using mechanical key1 push gray
slide2 to unlatch battery
compartment3.

Pull the battery compartment3 out of
the housing in direction of arrow.
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 replacing batteries, always
replace both batteries.
The required replacement batteries are
available at any Mercedes-Benz Light
Truck Center.

441 Practical hints
Replacing SmartKey batteries
4Battery
5Contact spring
Remove the batteries4 in direction of
arrow.

Using a line-free cloth, insert new
batteries4 under the contact
spring5 with the plus (+) 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.
SmartKey with KEYLESS-GO*
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1 (
page 435).
1Mechanical key
2Battery compartment

Insert mechanical key1 into opening
and press mechanical key in direction
of arrow.
The battery compartment2 is
unlatched.

Pull the battery compartment2 out of
the SmartKey housing.
3Battery
4Contact spring


442 Practical hintsReplacing SmartKey batteries
Pull out batteries3.

Using a line-free cloth, insert new
batteries3 with the plus (+) side fac-
ing up underneath the contact
spring4.

Return battery compartment2 into
housing until it locks into place.

Slide mechanical key1 back into the
SmartKey.

Check the operation of the SmartKey
and the KEYLESS-GO*.


443 Practical hints
Replacing bulbs
Replacing bulbs
Bulbs
Safe 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. See an
authorized Mercedes-Benz Light Truck
Center for headlamp adjustment.Front lamps
iSubstitute bulbs will be brought into
use when the following lamps malfunc-
tion:

Brake lamps


Parking lamps


Turn signal lamps


Tail lamps
Observe the messages in the multi-
function display (
page 418).
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.
Lamp
Type
1
Parking and standing
lamp
W5W
2
High beam/high
beam flasher lamp
H7 (55 W)
3
Low beam
1
1Vehicles with Bi-Xenon headlamps*: Do not re-
place the Bi-Xenon bulbs yourself. See your autho-
rized Mercedes-Benz Light Truck Center.
H7 (55 W)
Bi-Xenon*:
D2S-35 W
4
Additional turn signal
lamp
LED
5
Side marker lamp
WY 5 W
6
Turn signal lamp
3457 AK S-8
(30/2.2 cp
bulb)
7
Front fog lamp
H11 (55 W)

444 Practical hintsReplacing bulbsRear 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 Light Truck Center.
Lamp
Type
8
High mounted brake
lamp
LED
9
Brake lamp
P21W
a
Backup lamp
P21W
b
Turn signal lamp
PY 21 W
c
Side marker lamp
P21/4W
d
Tail, parking, standing
lamp, rear fog lamp
(only driver’s side)
P21/4W
e
License plate lamps
C5W
Warning!
G
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before chang-
ing 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.

445 Practical hints
Replacing bulbs
Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Light Truck Center:

Additional turn signals in the exterior
rear view mirrors


Bi-Xenon lamps*


Front fog lamps (vehicles with sport
package*)


High mounted brake lamp
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 138).

Open the hood (
page 326).
1Housing cover for low beam halogen or
Bi-Xenon* headlamp
2Housing cover for high beam halogen
bulb (vehicles with halogen bulbs: high
beam and high beam flasher; vehicles
with Bi-Xenon* headlamps: high beam
flasher only)
3Bulb socket for parking and standing
lamp bulb
4Bulb socket for turn signal lamp bulb
5Bulb socket for side marker lamp bulb

446 Practical hintsReplacing bulbsReplacing low beam bulbs
1Housing cover for low beam halogen or
Bi-Xenon* headlamp
2Electrical connector for low beam
headlamp bulb (halogen headlamps
only)Bi-Xenon* headlamp Low beam halogen headlamp

Turn housing cover1 counterclock-
wise and remove it.

Turn electrical connector2 with bulb
counterclockwise out of housing.

Remove old bulb from connector.

Insert the new bulb so that its socket
locates in the recess of the lamp hous-
ing.

Place electrical connector2 with bulb
into housing and turn clockwise.

Align housing cover1 and turn it
clockwise.
Warning!
G
Do not remove the cover
1
for the
Bi-Xenon* headlamp. Because of high volt-
age in Xenon* lamps, it is dangerous to re-
place the bulb or repair the lamp and its
components. We recommend that you have
such work done by a qualified technician.

447 Practical hints
Replacing bulbs
Replacing high beam halogen bulb,
parking and standing lamp
1Housing cover for high beam halogen
bulb (vehicles with halogen bulbs: high
beam and high beam flasher; vehicles
with Bi-Xenon* headlamps: high beam
flasher only), parking and standing
lamp2Electrical connector for high beam
halogen bulb (vehicles with halogen
bulbs: high beam and high beam flash-
er; vehicles with Bi-Xenon* headlamps:
high beam flasher only)High beam halogen bulb

Turn housing cover1 counterclock-
wise and remove it.

Turn electrical connector2 with bulb
counterclockwise out of housing.

Remove old bulb from connector.

Insert the new bulb so that its socket
locates in the recess of the lamp hous-
ing.

Place electrical connector2 with bulb
into housing and turn clockwise.

Align housing cover1 and turn it
clockwise.

448 Practical hintsReplacing bulbsParking/standing lamp bulb
Turn bulb socket3 counterclockwise
and remove it (
page 445).

Pull out bulb socket3 with the bulb.

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.

Press bulb socket3 back into the
lamp.

Align bulb socket3 and turn it clock-
wise.Turn signal bulb
1Bulb socket

Turn bulb socket1 counterclockwise
and pull it out.

Press the new bulb gently into
socket1, turn socket counterclock-
wise and remove it.

Insert the new bulb in socket1, push
and turn the bulb clockwise.

Align bulb socket1 and turn bulb
socket clockwise.Side marker lamp bulb

Turn bulb socket5 counterclockwise
and remove it (
page 445).

Pull out bulb socket5 with the bulb.

Press gently onto the bulb and turn
counterclockwise out of bulb
socket5.

Press the new bulb gently into bulb
socket5 and turn clockwise until it
engages.

Press bulb socket5 back into the
lamp.

Align bulb socket5 and turn it clock-
wise.

449 Practical hints
Replacing bulbs
Front fog lamp
Remove front fog lamp cover (ML 350,
ML 500):
1Cover
2Front fog lamp

Use a suitable object (e.g. screwdriver)
to press on the release lever behind the
front panel.
Cover1 releases.

Pull cover1 out of the bumper.
Remove front fog lamp cover (ML 350,
ML 500 with AMG Sport Package):
1Cover
2Front fog lamp

Use a suitable object (e.g. hook or a
screwdriver) and place the hook or
screwdriver carefully between lower
end of cover and bumper.

Turn the hook or screwdriver 90°.

Hold the cover1 and pull the hook or
screwdriver outwards.
Example ML 350, ML 500 without Sport
Package; Sport Package similar3Screw
Turn the screws3 counterclockwise.

Pull the front fog lamp2 out of the
bumper.

Pull electrical connector off.
!If not done carefully and properly, dam-
age to the bumper can result. We there-
fore recommend that you have this
work carried out by an authorized
Mercedes-Benz Light Truck Center.