CITROEN C4 CACTUS Handbook page 198

In the event of a breakdown
Main beam headlamps
F Remove the protective cover by pulling the
tab.
F Disconnect the bulb connector (do not
remove the earth connector located below).
F Push on the spring, then move it towards
the middle of the vehicle to release the
bulb.
F Remove the bulb and change it.
To reassemble, carry out these operations in
reverse order.
196
Direction indicators
Rapid flashing of the direction indicator
warning lamp (right or left) indicates the
failure of a bulb on that side.
F Turn the bulb holder an eighth of a turn
anti-clockwise and extract it.
F Remove the bulb and change it.
To reassemble, carry out these operations in
reverse order.
Amber coloured bulbs, such as the
direction indicators, must be replaced
with bulbs of identical specifications
and colour.