Mercury Grand Marquis 2003 s Workshop Manual

compressor will operate automatically if the outside temperature is
above approximately 2°C (36°F). The air distributed through the floor
ducts will be slightly warmer than that sent to the windshield
defroster ducts and the side window demisters.
•Defrost - Distributes outside air through the windshield defroster
ducts and the side window demisters. The A/C compressor will
operate automatically if the outside temperature is above
approximately 2°C (36°F). This mode will clear ice and fog from the
windshield.
Operating tips
•To reduce fogging under humid weather conditions, place the climate
control system in Defrost and Rear Defrost (if equipped) mode before
driving.
•To reduce humidity buildup inside the vehicle: Do not drive with the
climate control system in Off mode. Do not drive with the climate
control system in Max A/C mode (if equipped).
•Under normal weather conditions, do not leave your vehicle in Max
A/C (if equipped), recirculation control (if equipped) or Off mode
when turning off the ignition.
•Under snowy or dirty weather conditions, leave your vehicle in Max
A/C (if equipped), recirculation control (if equipped), or Off mode
when turning off the ignition.
•Remove any snow, ice or leaves from the exterior base of the
windshield.
•To increase the efficiency of the A/C (if equipped), drive with the
windows slightly open for 2–3 minutes or until the vehicle has been
“aired” out.
•Do not place objects under the front seat or over the defroster ducts.
They may reduce visibility, fall into the ducts, or degrade the
performance of your climate control system.
To aid in side window defogging/demisting in cold weather conditions:
1. Select VENT
2. Set the temperature control to full heat
3. Set the fan speed to HI
4. Direct the outer panel vents towards to side windows
To increase airflow to the outer panel vents, close the central panel
vents.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
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Do not place objects on top of the instrument panel, as these
objects may become projectiles in a collision or sudden stop.
REAR WINDOW DEFROSTER
The rear defroster control is located
on the instrument panel.
Press the rear defroster control to
clear the rear window of thin ice
and fog.
•A small LED will illuminate when
the rear defroster is activated.
The ignition must be in the ON position to operate the rear window
defroster.
The defroster turns off automatically after 10 minutes or when the
ignition is turned to the OFF position. To manually turn off the defroster
before 10 minutes have passed, push the control again.
Activating the rear window defroster will also activate the heated mirrors
(if equipped). For more information refer toHeated outside mirrorsin
theDriver controls chapter.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Climate Controls
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HEADLAMP CONTROL
Turns the lamps off.
Turns on the parking
lamps, instrument panel lamps,
license plate lamps and tail lamps.
Turns the headlamps on.
Autolamp control
The autolamp system provides light
sensitive automatic on-off control of
the exterior lights normally
controlled by the headlamp control.
The autolamp system also keeps the
lights on for a predetermined period
of time after the ignition switch is
turned to OFF.
•To turn autolamps on, rotate the
control counterclockwise to the
next position from OFF.
•To turn autolamps off, rotate the control clockwise past OFF to the
parking lamp position
, then back to OFF.
The headlamps will also turn on when the windshield wipers are
activated, after a 10–20 second delay.
Daytime running lamps (DRL) (if equipped)
Turns the lowbeam headlamps on with a reduced output. To activate:
•the key must be in the ON position,
•the parking brake released, and
•the headlamp control is in the OFF or Parking lamps position.
Always remember to turn on your headlamps at dusk or during
inclement weather. The Daytime Running Light (DRL) System
does not activate your tail lamps and generally may not provide
adequate lighting during these conditions. Failure to activate your
headlamps under these conditions may result in a collision.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
Lights
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High beams
Push the lever toward the
instrument panel to activate. Pull
the lever towards you to deactivate.
Flash to pass
Pull toward you slightly to activate
and release to deactivate.
PANEL DIMMER CONTROL
Use to adjust the brightness of the
instrument panel during headlight
and parklamp operation.
•Rotate the thumbwheel from left
to right to brighten the
instrument panel.
•Rotate the thumbwheel from right
to left to dim the instrument
panel.
Domelamp Control
The panel dimmer control also controls the domelamp operation.
•Rotate the thumbwheel fully to the right, past detent to activate the
domelamp.
•In order to turn off the domelamp, rotate the thumbwheel to the left.
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 a qualified service technician.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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Vertical aim adjustment
1. Park the vehicle on a level surface approximately 7.6 meters (25 feet)
from a vertical wall or screen directly in front of it.
•(1) Eight feet
•(2) Center height of lamp to
ground
•(3) Twenty five feet
•(4) Horizontal reference line
2. Measure the height of the headlamp bulb center from the ground and
mark a 2.5 meter (8 foot) 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.
4. On the wall or screen you will
observe an area of high intensity
light. The top of the high intensity
area should touch the horizontal
reference line, if not, the beam will
need to be adjusted.
To see a clearer light pattern for
adjusting, you may want to block
the light from one headlamp while
adjusting the other.
5. Locate the vertical adjuster on
each headlamp. Usinga4mm
wrench, turn the adjuster either
clockwise (to adjust down) or
counterclockwise (to adjust up).
The horizontal edge of the brighter
light should touch the horizontal
reference line.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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6. HORIZONTAL AIM IS NOT REQUIRED FOR THIS VEHICLE AND IS
NON-ADJUSTABLE.
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.
The flash rate of the turn signal will speed up considerably if the left or
right turn lamp bulb (front or rear) is burned out.
Cornering lamps
When the turn signal is used and the headlamps are on, the cornering
lamps will light either the right or left side depending on the direction of
the turn.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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MAP/COURTESY LAMPS
Without a moon roof
With a moon roof
To turn on the map lamps, press the
map lamp control.
BULBS
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
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 assure 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.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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Function Trade Number
Headlamp 9007
Park, turn and sidemarker lamp (front) 3157 AK (amber)
Cornering lamp (front) 3156K
Tail, stop, turn and sidemarker lamp (rear) 3157K
Backup lamp 3156K
License plate lamp 168
High-mount brakelamp 912
Luggage compartment lamp 212-2
Dome lamp 906
Rear reading lamp 211-2
Map lamp 168
Illuminated visor mirror 168
Dual floorwell lamp 906
Glove compartment 168
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your dealer.
Replacing the interior bulbs
Check the operation of all bulbs frequently.
Replacing headlamp bulbs
To remove the headlamp bulb:
1. Make sure the headlamp control is in the OFF position, then open the
hood
2. Remove the three pin type retainers and the radiator sight shield.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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3. Disconnect the electrical connector.
4. Remove the headlamp retainer bolts and the headlamp assembly.
5. Remove the headlamp bulb protective cover.
6. Remove the bulb retaining ring by
rotating it counterclockwise to free
it from the bulb socket and slide the
ring off of the plastic base. Keep the
ring to retain the new bulb.
7. Disconnect the electrical
connector from the bulb.
8. To install, reverse the removal
procedure. (Re-aiming the
headlamps may be necessary. For
additional information refer to the
headlamp aiming section of the
owner’s guide.)
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.
NOTE:If the bulb is accidentally touched, it should be cleaned with
rubbing alcohol before being used.
Note: The headlamp bulb should not be removed from the headlamp
until just before a replacement bulb is installed. Removing the bulb for
an extended period of time may affect headlamp bulb performance.
Contaminants may enter the headlamp where they can settle on the lens
and reflector. Never turn the headlamps on with the bulb removed.
Replacing front parking lamp/turn signal bulbs
The park/turn lamp bulbs can be replaced with out removing the
headlamp assembly.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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1. Make sure headlamp switch is in OFF position, then open the hood.
2. Remove the three pin type retainers and the radiator shield.
3. Loosen the parking lamp attachments, on the inside of the lamp, and
pull the lamp assembly forward.
4. Remove the bulb from the side turn lamp assembly.
5. Disconnect the electrical connector from the bulb and replace the
bulb.
Note: The parking lamp/turn signal bulbs should not be removed from
the lamp until just before a replacement bulb is installed. Removing the
bulb for an extended period of time may affect headlamp bulb
performance. Contaminants may enter the headlamp where they can
settle on the lens and reflector. Never turn the lamps on with the bulb
removed.
6. To install, reverse the order of the removal procedure.
Replacing tail lamp/brake/turn lamp bulbs
The tail lamp, the brake lamp and the turn signal lamp bulbs are located
in the tail lamp assembly. Follow the same steps to replace either bulb.
1. Make sure headlamp switch is in
OFF position, then open the trunk
and remove plastic retainer to
expose the lamp assembly hardware.
2. Carefully pull the carpet away to
expose the plastic retainer.
3. Remove three nut and washer
assemblies and the lamp assembly
from the vehicle.
4. Remove the bulb socket by
rotating it counterclockwise, then
pulling it out of the lamp assembly.
2003 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
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