Opel INSIGNIA Owner's Manual page 228

226 Vehicle care
2. Rotate the bulb holder
anticlockwise to disengage.
Withdraw the bulb holder from the
reflector.
3. Disengage the bulb from the plug
connector by unlatching and
pulling.
4. Replace the bulb and connect
bulb holder with the plug
connector.
5. Insert the bulb holder, engaging
the two lugs into the reflector and
rotate clockwise to secure.
6. Fit the cap and rotate clockwise.
Front turn signal
1. Rotate the cap anticlockwise and
remove it.
2. Rotate the bulb holder
anticlockwise to disengage.
Withdraw the bulb holder from the
reflector.
3. Disengage the bulb holder from
the plug connector by unlatching
and pulling.
4. Replace the bulb and connect
bulb holder with the plug.
5. Insert the bulb holder, engaging
the two lugs into the reflector and
rotate clockwise to secure.