CITROËN C4 CACTUS Owner's Handbook Manual page 148

Child safety
Child seat in the front*
"Rearward facing"
When a "rearward facing" child seat is installed
on the front passenger seat, adjust the seat to
the intermediate longitudinal position, with the
backrest straightened.
The passenger's front airbag must be
deactivated. Otherwise, the child would
risk being seriously injured or killed if the
airbag were to inflate.
* The rules on carrying children are specific to
each country. Refer to the current legislation
in your country before installing a child seat
on this seat.
148
"Forward facing"
When a "forward facing" child seat is installed
on the front passenger seat, adjust the
vehicle's seat to the intermediate longitudinal
position with seat backrest straightened and
leave the passenger's front airbag activated.
Ensure that the seat belt is correctly
tensioned.
For child seats with a support leg,
ensure that the support leg is in stable
contact with the floor. If necessary,
adjust the passenger seat.
Passenger seat adjusted to the intermediate
longitudinal position.