Using the right bulbs, Lights – FORD 2009 Expedition v.2 User Manual

Page 100

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condensation occurs, a thin film of mist can form on the interior of the
lens. The thin mist eventually clears and exits through the vents during
normal operation. Clearing time may take as long as 48 hours under dry
weather conditions.

Examples of acceptable condensation are:
• Presence of thin mist (no streaks, drip marks or droplets)
• Fine mist covers less than 50% of the lens
Examples of unacceptable moisture (usually caused by a lamp water
leak) are:
• Water puddle inside the lamp
• Large water droplets, drip marks or streaks present on the interior of

the lens

Take your vehicle to dealer for service if any of the above conditions of
unacceptable moisture are present.

Using the right bulbs

Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized “D.O.T.” for North America to ensure
lamp performance, light brightness and pattern and safe visibility. The
correct bulbs will not damage the lamp assembly or void the lamp
assembly warranty and will provide quality bulb burn time.

Function

Number of bulbs

Trade number

Headlamps
(low and high-beam)

2

H13/9008

Front sidemarker

2

194

Front park/turn lamps

2

3157 A

Fog lamps

2

9145

Front row map lamps

2

W5W

Front row map/dome lamps

3

578

Rear cargo lamp

1

578

2nd row reading lamp

2

W5W

Turn/tail/brake/sidemarker
lamps

2

3157K or 4157K

Backup lamp

2

921

2009 Expedition (exd)
Owners Guide, 2nd Printing
USA
(fus)

Lights

100

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