1998 LINCOLN MARK VIII low beam

5. Position the low beam headlamp
housing cover over the bulb
assembly and rotate clockwise to
lock into place.
6. Match the remaining wire
connectors with their proper mates
and reinstall.
7. Reinstall the top bolts. Tighten
1/2 turn past finger tight.
8. Reinstall the retaining screw at
the corner of the headlamp
assembly.
Maintenance and care
150

Using the right bulbs
Function Trade Number
Headlamp low beam 9500
Headlamp high beam 9005
Park and turn lamp (front) 3157 NAK
Side marker lamp (front) 168
Cornering lamp (front) 3156
Tail lamp, brakelamp, turn lamp 3057K
Side marker (rear) 168
Backup lamp 3156
License plate lamp 168
High-mount brakelamp 3157K
Luggage compartment lamp 912
Dome/map lamp (with moon roof) 906
Dome lamp 906
Map lamp 168
Sun visor lighted mirror Part # ES9Z-13466-B
Front door courtesy lamp/dual floorwell lamp 168
Rear reading/courtesy 912
Glove compartment 194
Ashtray 194
To replace all instrument panel lights - see your dealer.
AIMING THE HEADLAMPS
Your vehicle is equipped with a Vehicle Headlamp Aim Device (VHAD)
on each headlamp body. Each headlamp may be properly aimed in the
horizontal direction (left/right) and the vertical position (up/down).
A non-zero bubble reading does not necessarily indicate out-of-aim
headlamps. If your vehicle is not positioned on a level surface, the slope
will be included in the level indicator. Therefore, vertical headlamp
adjustment should be performed only when beam direction appears to be
incorrect or a level surface can not be verified.
The horizontal aim must be adjusted first. You will need one 4 mm box
wrench or open end wrench.
Maintenance and care
154

The following procedure assumes that the vehicle's front structure is
properly aligned. If the vehicle has been in an accident requiring the
front end of the vehicle to be repaired, the horizontal indicator should be
recalibrated by the service facility.
Horizontal aim adjustment
1. With the hood open, locate the
horizontal indicator and adjusting
screw.
2.Usea4mmwrench to turn the
horizontal adjusting screw until the
reference mark on the reflector
extension aligns with the ª0º
reference mark on the horizontal
indicator when viewed directly from
above.
3. When the horizontal aim has been
adjusted, close the headlamp access
panel.
Vertical aim adjustment
The numbers shown on the vial indicate beam direction in degrees up or
down.
1. Do not adjust the vertical aim until after adjusting the horizontal aim.
2. With the hood open, locate the
bubble level vertical aim indicator. It
is visible when viewed from the
above rear of the headlamp.
3.Usea4mmwrench to turn the
vertical adjusting screw until the
reference mark on the reflector
extension aligns with the ª0º
reference mark on the vertical
indicator when viewed directly from
above.
4. Close the hood.
Maintenance and care
155