Mercedes-Benz E-class 1999 Control Switch - Manual (Page 25)

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5. Vertical headlamp aim
(Low beams on):
Turn adjusting screw (2) (coun-
terclockwise to adjust headlamp
downward, clockwise upward) until
the headlamps illuminate the test
screen as shown.
Graduations: 0.18° pitch.
6. Horizontal headlamp aim
(Low beams on):
Turn adjusting screw (1)
(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 (11) of each lamp.
The left and right headlamps must
be adjusted individually
7. The "O" on the indicator wheel (9)
should align with projection (10). If it
does not, with a small screwdriver,
pry indicator wheel up and rotate so
that the "O" aligns with projection
(10). Push down indicator wheel
until it snaps in place.
Graduations: 0.38° pitch.
Note:
If it is not possible to obtain a proper
headlamp adjustment, have the system
checked at your authorized Mercedes-
Benz dealer.