PEUGEOT 308 Handbook page 220

Safety
IUF: seat suitable for the installation of an I sofix
U niversal seat, " F orward facing" secured
using the upper strap.
IL-SU: seat suitable for the installation of an
I sofix S emi- U niversal seat either:
- "rear facing" fitted with an upper strap or a
support leg,
- "forward facing" fitted with a support leg,
- an infant car seat fitted with an upper strap
or a support leg.
218
X: seat not suitable for the installation of a
child seat for the weight group indicated.
(1) move a seat without height adjustment
forwards by 1 notch from the mid position
forwards and backwards A seat with height
adjustment must be in the highest position.
(2) the installation of an infant carrier on one of
the outer seats makes use of the other two
seats impossible.
(3) a seat with height adjustment must be
placed in the highest position. Move the
seat without height adjustment forward by
5 notches from the mid-position forwards
and backwards.
For advice on securing of the upper strap,
refer to the "ISOFIX mountings" section.
Remove and stow the head restraint
before fitting a child seat with a
backrest to a passenger seat.
Refit the head restraint when the child
seat is removed.