Opel Vivaro Owner's Manual page 224

222 Vehicle care
Withdraw the bulb holder from the
reflector housing.
3. Detach the bulb from the bulb
socket and replace the bulb.
4. Insert the bulb socket into the
reflector housing.
5. Fit the cover.
Parking light
1. Remove the protective cover.
2. Press the clips on the bulb socket
to disengage and withdraw socket
from the reflector.
3. Remove the bulb from the socket
by pulling.
4. Replace and insert the new bulb
into the socket.
5. Insert the bulb socket into the
housing.