Mercedes-Benz 300 SD Operator's Manual page 105

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.
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).
Vertical headlamp aim:
Turn adjusting screw (2) until the
bubble in level (10) is in center of the
marking (bold line).
Horizontal headlamp aim:
Turn adjustment screw (1) until the
number 0 on scale (11) aligns with
marker (12).
• Reinstall cover and fasten with
retaining clamps (5).
• Reinstall cover above
headlamp.
105