Ducati MULISTRADA 1000DS Mode D'emploi page 170

Low beam (upper bulb)
Disconnect the connectors (4) from the bulb terminals.
Press and squeeze the ends of the clip (5) to release the
clip from the bulb holder (fig. 57).
Lift the clip (5).
Extract the burnt-out bulb (6) and fit a new bulb taking care
not to touch the transparent body (fig. 58).
E
Note
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