Ford Focus 2004 Owner's Manual page 120

Roadside emergencies
Headlights – main beam
55 watt H1 halogen bulb
Remove the wiring connector, push
on the wire clip and swivel it to the
side. On the left side, the bulb is
rotated through 180º. Pull out the
bulb.
Install in the reverse order.
118
Side lights
5 watt wedge base bulb
Squeeze the clips on either side of
the bulb holder and pull it out.
Carefully remove the bulb from the
holder.
Install in the reverse order. The
clips must be in the horizontal
position.