63 10 ... Test Requirements For Headlight Vertical Aim Adjustment

Car parked on level ground.
Replace faulty glass and mirrors and blackened light bulbs.
Check tyre pressure and correct if necessary.
Apply load equivalent to one person on driver's seat (approx. 75 kg).
Vehicle with full fuel tank or appropriate additional weight in luggage compartment.
Correct adjustment of headlights in relation to engine hood (gap dimensions).
Manual headlight vertical aim control: Turn handwheel to 0 position.
Automatic headlight vertical aim control: Wait approx. 30 seconds after switching on lights.
Version with xenon headlights: Wait 80 seconds after switching on lights. During this time, do not move the vehicle and avoid vibrations.
Align headlight aimer with vehicle longitudinal axis and parallel to parking surface. Set marking line (M) on aimer to distance (e). Scale graduations on aimer are equal to a gradient in cm at a distance of 10 meters.

Fig 1: Identifying Headlight Aimer With Vehicle Longitudinal Axis

Courtesy of BMW OF NORTH AMERICA, INC.

Light/dark limit of headlights in headlight aimer

e Adjustment dimension, headlights:

as per type plate on headlight housing in % (e.g.: 1.0 % = 10 cm /10 m = 10 on headlight aimer).

Adjustment dimension, fog lights:

H Height of center of headlight above parking surface.

h H - e = height of marking line above parking surface

+ Central mark = center point of high-beam headlight.

M Marking line of headlamp aimer

S Parking surface of vehicle and headlight aimer

Adjustment dimension (e) is only valid for EUR. Observe differing national regulations.