Ducati MULTISTRADA 1000DS S Mode D'emploi page 169

Low beam (top bulb)
Disconnect the connectors (4) from the bulb.
Press then squeeze the ends of the spring (5) to release it
from the bulb holder (fig. 57).
Lift the spring (5).
Remove the burned out bulb (6) and fit the new one,
E
taking care not to touch the glass (fig. 58).
Notes
Be careful to hold the new bulb at the base only.
Never touch the transparent body with your fingers or it
will blacken resulting in reduced bulb brilliancy.
70
5
4
6
fig. 57
fig. 58