2008 Mercury Mariner low beam

Autolamp delay system (if equipped)
If your vehicle is equipped with autolamps, you can set the delay time to
keep the headlights on for up to three minutes after the key is turned
OFF. The delay time is set to 20 seconds at the factory, but the delay
time may be changed by following the steps below (Steps 1 through 6
must be done within 10 seconds):
1. Turn the key to the 1 (LOCK)
position.
2. Rotate the headlamp control to
the autolamp position.
3. Rotate the headlamp control to
the OFF position.
4. Turn the key to the 3 (RUN)
position.
5. Turn the key back to the
1 (LOCK) position.
6. Turn the headlamp control to the autolamp position (the headlights
should turn on).
7. Turn the headlamp control to the OFF position when the desired
delay time (up to 3 minutes) has been reached.
Fog lamp control
The headlamp control also operates
the fog lamps. The fog lamps can be
turned on when the headlamp
control is in the
,or
positions and the high beams are
not turned on.
Pull headlamp control towards you
to turn fog lamps on. The fog lamp
indicator light
will illuminate.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
42

AIMING THE HEADLAMPS
The headlamps on your vehicle are properly aimed at the assembly plant.
If your vehicle has been in an accident the alignment of your headlamps
should be checked by your authorized dealer.
Vertical aim adjustment
1. Park the vehicle directly in front of a wall or screen on a level surface,
approximately 25 feet (7.6 meters) away.
•(1) 8 feet (2.4 meters)
•(2) Center height of lamp to
ground
•(3) 25 feet (7.6 meters)
•(4) Horizontal reference line
2. Measure the height from the
center of your headlamp 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). The center of the lamp is
marked by a 3.0 mm circle on the headlamp lens.
3. Turn on the low beam headlamps to illuminate the wall or screen and
open the hood. Cover the left-hand headlamp with an opaque cloth.
4. On the wall or screen you will
observe a light pattern with a
distinct horizontal edge of high
intensity light towards the right.
If this edge is not at the horizontal
reference line, the beam will need to
be adjusted.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
44

BULB REPLACEMENT
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
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
Headlamps (high and low
beams)2
H13
Park/turn/sidemarker lamps
(front)2
3457AK (amber)
Side turn (fender) 2 WY5W (amber)
Rear stop/turn/tail/sidemarker 2 3157K / 4157K
Backup lamp 2 921
Fog lamp (front) 2 9145
Center High-mount stop lamp 5 W5WL
Rear license plate lamp 2 168
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer
Replacing the interior bulbs
Check the operation of all bulbs frequently.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
47

The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 30A Not used (spare)
2 15A Brake On/Off switch
3 15A Not used (spare)
4 30A Not used (spare)
5 10A Keypad illumination, Brake Shift
Interlock (BSI), SPDJB
6 20A Turn signals, Stop lamps
7 10A Low beam headlamps (left)
8 10A Low beam headlamps (right)
9 15A Interior lights
10 15A Backlighting
11 10A Four wheel drive
12 7.5A Power mirror switch
13 7.5A Canister vent
14 10A FCIM (radio buttons), Satellite
radio, Front display module
15 10A Climate control
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
213