Mercedes-Benz S 600 Operator's Manual page 118

7. Horizontal headlamp aim
(low beams on):
Turn adjusting screw (2)
(counterclockwise to adjust to the
left, clockwise to the right) until
the headlamps (low beam)
illuminate the test screen as
shown. The vertex of the angle
formed in each beam image should
align with the vertical centerline
(10) of each lamp.
The left and right headlamps must
be adjusted individually.
8. The indicator (7) in the sight
glass should align with the "0"
mark after any horizontal adjust-
ment. If they do not, slide the "0"
mark on the scale (8 ) until it
aligns with the indicator (7).
Graduations: 0.38° pitch.
9. Reinstall access cover, and
fasten with retaining clamp (3)
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