The tire pressure must be correct.
The vehicle must be loaded with an average weight of 75 kg (1 person) on the driver's seat.
Fill the tank completely with fuel.
Place the car on a level surface.
Pump the front of the car vigorously several times to settle the suspension.
Set the headlight range adjuster on the instrument panel to "O".
The headlights are adjusted with the low beam headlights on. The beam tilt value X is 10 cm at a distance of 10 m for normal headlights. For fog lights X = 5 cm at a distance of 5 m.
Access to the adjustment screws is provided from the engine compartment: 1 - horizontal adjustment, 2 - height adjustment.
After adjustment, install the headlight caps.
Information taken from this resource «bmwman.ru»