Mercedes-Benz 500 SEC Operator's Manual page 106

Adjusting Headlamp
Correct headlamp adjustment is
extremely important. To check and
readjust a headlamp do the following:
• Park unloaded vehicle on level
surface. Check surface with
carpenter's level.
• Remove cover above headlamp.
Move retaining clamps (5) aside and
remove cover.
Vertical headlamp aim:
Turn adjusting screw (1) until bubble
in level (6) is in center of the marking
(bold line).
Horizontal headlamp aim:
Turn adjustment screw (2) until pins
in sight glasses (7) and (8) show the
same value.
• Reinstall cover and fasten with
retaining clamp (3).
• Reinstall cover above
headlamp.
Note:
Horizontal headlamp aim normally
never changes and needs readjustment
only after repair to the body or a
headlamp unit. Therefore, do not turn
the horizontal adjustment screw (1), if
number 0 on scale (11) aligns with
marker (12).
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