Renault Clio User Manual page 63

CHILD SEATS: attachment by seat belt
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X = Seat not suitable for fitting child seats of this type.
U = Seat which allows a child seat with "Universal" approval to be installed using a seat belt; check that it can be fitted.
B2 = Booster seats in groups 2 and 3 (15 to 25 kg and 22 to 36 kg).
(5) Raise the seat to the maximum and position it as far back as possible, tilting the seatback slightly (approximately 25°).
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