5. NOTE: The bulb center of the low beam bulb is sometimes marked on the lens (circle, crosshair or other mark) or is the center of the low beam reflector, bulb shield or the low beam projector inner lens.
Measure the center of the headlamp height to ground and record the measurement.
6. NOTE: Use a 2.4 m (8 ft) section of masking tape for the horizontal reference line.
For vehicles with headlamp bulb center heights below 95 cm (37.5 inches), place the horizontal reference line equal to the headlamp bulb center height. For vehicles with headlamp bulb center heights between 95 cm - 105 cm (37.5 - 41.5 inches), place the horizontal reference line at the headlamp bulb center height minus 1.3 cm (0.5 inch). For vehicles with headlamp bulb center heights above 105 cm (41.5 inches), place the horizontal reference line at the headlamp bulb center height minus 2.5 cm (1.0 inch).
7. NOTE: Carry out this procedure in a dark environment to effectively see the headlamp beam pattern.
Turn the low beam headlamps on to illuminate the wall or screen and open the hood.
8. NOTE: The cut off of the beam pattern is the horizontal line of the beam pattern where there is MAXIMUM change between light and dark.
On the wall or screen, locate the cut off of the beam pattern.
VOR-type headlamps
NOTE: Procedure applies to both left and right headlamps with VOR molded on lens.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.