FORD 2012 Fiesta v.1 - Manual (Page 109)

BULB REPLACEMENT
Lamp assembly condensation
Exterior lamps are vented to accommodate normal changes in pressure.
Condensation can be a natural by-product of this design. When moist air
enters the lamp assembly through the vents, there is a possibility that
condensation can occur when the temperature is cold. When normal
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 a 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 and an “E” for
Europe 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
Headlamp (low beam) 1 H11B
Headlamp (high beam) 1 HB3-9005LL
Headlamp (park/turn) 1 3157NAK
(amber)
Headlamp (side marker) 1 168
4-door rear bodyside lamp
(park/turn/sidemarker) 1 3157K
4-door rear deck lamp
(backup) 1 921
Lights
109
2012 Fiesta (fie)
Owners Guide, 1st Printing
USA (fus)