2008 FORD F350 headlamp

•(4) Horizontal reference line
2. Measure the height from the
center of your headlamp (indicated
by a 3.0 mm circle on the lens) to
the ground and mark an 8 foot (2.4
meter) horizontal reference line on
the vertical wall or screen at this
height (a piece of masking tape
works well).
3. Turn on the low beam headlamps
to illuminate the wall or screen and open the hood. Cover one of the
headlamps so no light from that lamp hits the wall.
4. On the wall or screen you will
observe a light pattern with a
distinct horizontal edge towards the
right. If this edge is not at the
horizontal reference line, the beam will need to be adjusted so the edge
is at the same height as the horizontal reference line.
5. Locate the vertical adjuster on
each headlamp, then use a E5 Torx
socket to turn the adjuster either
counterclockwise (to adjust down)
or clockwise (to adjust up) aligning
the upper edge of the light pattern
up to the horizontal line.
6. Repeat Steps 3–5 for the other
headlamp.
7. Close the hood and turn off the
lamps.
TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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MAP LAMPS (IF EQUIPPED)
The dome lamp turns on when:
•any door is opened,
•the instrument panel dimmer
switch is rotated up until the
courtesy lamps come on, and
•any of the remote entry controls
are pressed and the ignition is
OFF.
BULBS
Headlamp condensation
The headlamps are vented to equalize pressure. When moist air enters
the headlamp(s) through the vents, there is a possibility that
condensation can occur. This condensation is normal and will clear
within 45 minutes of headlamp operation.
Using the right bulbs
Check the operation of all the bulbs frequently.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Function Number
of bulbsTrade number
Headlamps (aerodynamic) 2 H13/9008
Headlamps (sealed beam) 2 H6054
Park lamp with aerodynamic headlamp 2 3157A or 3157AK
Park lamp with sealed beam headlamp 2 4157K/3157
Sidemarker 2 194
Tail/stop/turn/sidemarker (Pick-up only) 2 4157K or 3157
Tail/stop/turn/sidemarker (Chassis cabs
only; if equipped)2 3157
Back-up (Pick-ups only) 2 3156 or 3156K
Back-up (Chassis cabs only) 2 3157
High-mount stoplamp 1 922
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
91
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Function Number
of bulbsTrade number
Foglamp 2 9145
License plate lamp 2 194
Cargo lamp 2 906
Mirror turn signal 2 2825
Mirror clearance lamp 2 2825
Front clearance lamps (2) and Front
identification lamps (3)5 194
Rear fender clearance* 4 W5W
Interior visor lamp (if equipped) 4 194
Rear identification 3 194
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer
* Dual rear wheels, or if equipped.
Replacing headlamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the four bolts from the
top, side and bottom front of the
headlamp assembly.
3. Pull the assembly straight out
disengaging two snap clips to
fender.
4. Disconnect the electrical
connector by squeezing the release
tab and pushing the connector
forward and then pulling it
rearward.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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ProCarManuals.com

5. Remove the bulb assembly by
turning it counterclockwise and
pulling it straight out.
Handle a halogen headlamp bulb carefully and keep out of
children’s reach. Grasp the bulb only by its plastic base and do
not touch the glass. The oil from your hand could cause the bulb to
break the next time the headlamps are operated.
Install the new bulb(s) in reverse order.
Replacing park/turn and sidemarker lamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the four bolts from the
top, side and bottom front of the
headlamp assembly.
3. Pull the assembly straight out.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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ProCarManuals.com

4. Remove the bulb assembly, (1)
sidemarker or (2) park/turn by
turning it counterclockwise and
pulling it straight out.
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
Replacing headlamp bulbs (sealed beam)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the three screws and one
bolt from the top and bottom of the
park lamp/bezel assembly.
3. Remove the four screws and the
headlamp retaining ring from
headlamp.
4. Disconnect the electrical
connector from the headlamp.
Install the new bulb(s) in reverse order.
Replacing park/turn/sidemarker bulbs (sealed beam)
1. Make sure that the headlamp control is in the off position and open
the hood.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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2. Remove the three screws and one
bolt from the top and bottom of the
park lamp/bezel assembly.
3. Pull the assembly straight out
disengaging snap clip.
4. Remove the bulb assembly,
sidemarker or park/turn by turning
it counterclockwise. (Top view of
assembly shown.)
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
Replacing brake/tail/turn/back-up lamp bulbs - Pick-ups only
1. Make sure the headlamp switch is
in the off position and then open
the tailgate to expose the lamp
assemblies.
2. Remove the two bolts from the
tail lamp assembly and carefully pull
the lamp assembly from the tailgate
pillar by releasing the two retaining
tabs.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
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3. Rotate the bulb socket counterclockwise and remove from lamp
assembly.
4. Pull the bulb straight out of the socket.
Install the new bulb(s) in reverse order.
Replacing brake/tail/turn/back-up lamp bulbs - Chassis cabs only;
if equipped
1. Make sure the headlamp switch is
in the off position.
2. Remove the four screws and the
lamp lens from lamp assembly.
3. Carefully pull the bulb straight
out of the socket and push in the
new bulb.
Replacing cargo lamp and high-mount brakelamp bulbs
1. Make sure the headlamp switch is
in the off position.
2. Remove the two screws and lamp
assembly from vehicle as wiring
permits.
3. Remove the bulb socket by
rotating counterclockwise.
4. Pull the bulb straight out of the
socket.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
96
ProCarManuals.com

Front clearance and identification lamp bulbs
1. Make sure the headlamp switch is
in the off position.
2. Remove the screw and lens from
the lamp assembly.
3. Pull the bulb straight out of the
socket.
Install the bulb(s) in reverse order.
Replacing foglamp bulbs (if equipped)
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the bulb socket from the
foglamp by turning
counterclockwise.
3. Disconnect the electrical
connector from the foglamp bulb.
Install the new bulb(s) in reverse order.
Replacing license plate lamp bulbs
The license plate bulbs are located
behind the rear bumper. To change
the license plate lamp bulbs:
1. Reach behind the rear bumper to
locate the bulb.
2. Twist the bulb socket
counterclockwise and carefully pull
to remove it from the lamp
assembly.
3. Pull out the old bulb from the
socket and push in the new bulb.
4. Install the bulb socket in lamp assembly by turning it clockwise.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
97
ProCarManuals.com