CITROEN DS5 Owner's Handbook Manual page 204

Daytime running lamps / sidelamps
For the replacement of this type of LED lamp
and lighting guides, contact a CITROËN dealer
or a qualified workshop.
A replacement kit for the LEDs is available from
CITROËN dealers.
Direction indicators
Faster flashing of a direction indicator
warning lamp (left or right) indicates a
failed bulb on that side.
The direction indicator bulb is located below the
front lamp.
Turn the bulb holder a quarter turn and pull
it out.
Remove the bulb and change it.
For reassembly, carry out these operations in
reverse order.
You can also contact a CITROËN dealer or a
qualified workshop for the replacement of these
bulbs.