Ford Focus 2004 Owner's Manual page 124

Roadside emergencies
Reversing light and rear fog
light
Pull down the clip on the rear of
the light housing and press the
housing to the outside. Disconnect
the wiring connector.
Turn the bulb holder anticlockwise
as far as it will go and pull it out.
Gently press the bulb into the bulb
holder and turn anticlockwise,
remove the bulb.
Install in reverse order.
122
Rear fog light 21 Watt
Reversing light 21 Watt
Rear lights (4-door)
From inside the luggage
compartment remove the three
wing nuts on the light housing.
Gently pull the light housing to the
outside.
Lift the clips on the bulb holder and
separate the holder from the light
housing.
Gently press the bulb into the bulb
holder and turn anticlockwise,
remove the bulb.
Install in the reverse order.