Mercury 2002 Cougar Owner's Manual page 49

Lights
AIMING THE HEADLAMPS
The headlamps on your vehicle are properly aimed at the assembly plant.
If your vehicle has been aimed in an accident the alignment of your
headlamps should be checked by a qualified service technician.
Each headlmap may be properly aimed in the vertical (up/down)
direction only. THE HORIZONTAL (left/right) AIM IS PRESET BY THE
HEADLAMP MANUFACTURER AND DOES NOT NEED TO BE
RE-AIMED.
Adjusting the vertical aim
1. Park the vehicle on a level
surface.
2. The vertical indicator is located
on top of the headlamp assembly;
the adjusting screw is located
behind the headlamp assembly.
3. Turn the vertical adjusting screw
until the bubble aligns with the "0"
reference mark when viewed from
directly above. The "0" reference
mark is the middle of the three (3)
bold graduation marks.
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