Vauxhall Corsa Owner's Manual page 73

IUF = Mounting possible for universally
approved, forward-facing ISOFIX
child restraint systems in the
specified weight class.
IL = Mounting possible only with child
restraint systems approved for the
vehicle in the specified weight
class.
X = No ISOFIX child restraint system
approved in this weight class.
ISOFIX size class and seat device
A – ISO/F3: Forward-facing child
restraint system for
children of maximum
size in the weight class
9 to 18 kg.
B – ISO/F2: Forward-facing child
restraint system for
smaller children in the
weight class 9 to 18 kg.
B1 – ISO/F2X: Forward-facing child
restraint system for
smaller children in the
weight class 9 to 18 kg.
C – ISO/R3: Rear-facing child
restraint system for
children of maximum
size in the weight class
up to 13 kg.
Seats, interior
D – ISO/R2: Rear-facing child
restraint system for
smaller children in the
weight class up to 13 kg.
E – ISO/R1: Rear-facing child
restraint system for
young children in the
weight class up to 13 kg.
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