headlamp PORSCHE 911 CARRERA 2006 5.G Owners Manual

Practical Tips, Emergency Service
279
Adjusting HeadlightsfPlease observe the chapter “LIGHTS, REPLA-
CING BULBS” on Page 266.
Adjustment
The adjustment is made with the vehicle ready to
drive and the fuel tank completely filled.
The driver’s seat must be loaded by a person or a
165 lbs. (75 kg) weight and the tire pressures
must meet the prescribed values.
After being loaded, the car must be rolled a few
meters so that the suspension can settle.
For checking the headlight adjustment, the verti-
cal position of the cutoff of the lowbeam (see fig.)
has to be projected on a vertical screen (wall) in
distance of 7.5 m (24.6 ft.) from the front lens of
the headlamp.
The correct position of the cutoff is 5 cm (2.0 in.)
at 7.5 m or 24.6 ft. (0.4°) below a horizontal line,
x cm from ground to the center of the headlamp
lens. Lateral adjustment of the headlights should be
carried out at a specialist workshop with an optical
adjustment unit.
Distance
Visual aim shall be performed at not less than
7.5 m (this value is a rounded down conversion
from the 25-foot distance typical of field aim using
a screen). The 7.5 m (24.6 ft.) distance is meas-
ured from the headlamp lens to the viewing
screen.
f f f

280
Practical Tips, Emergency Service Floor
The surface upon which the vehicle rests is flat
and approximately level.
Screen
The screen upon which headlamp beams are pro-
jected is perpendicular to the floor and the vehi-
cle’s longitudinal axis, flat, uniformly light in color,
unobstructed, and wide and high enough to ac-
commodate the vehicle beam patterns to be
aimed.
The screen should be wide enough to provide at
least 1 m (3.3 ft.) of space outboard of the vehi-
cle’s headlamp spacing.
Adjustment screws
fDetach side carpeting in luggage compart-
ment.
Therefore unscrew plastic nut A.
Open the cover of the appropriate adjustment
screw.
The setting is adjusted by turning the hexagon
socket screws right or left, as appropriate.
B - Headlight vertical adjustmentVertical adjustment (screw B)
fturn clockwise = beam moves down
turn counter-clockwise = beam moves up
Note
fDo not alter the lateral adjustment.