Opel Automobile Owner's Manual page 106

106 Vehicle care
Low beam
1. Rotate the cap anticlockwise and
remove.
2. Push bulb on plug connector
downward.
3. Remove bulb with connector from
reflector housing.
4. Detach plug connector from bulb
base.
5. Plug the plug onto the new bulb.
6. Insert the bulb with connector so
that the lug engages in the recess
in the reflector.
7. Place headlamp protective cover
in position and close.
High beam
1. Rotate protective cover
anticlockwise and remove.
2. Detach plug connector from bulb.