Opel COMBO Owner's Manual page 71

Permissible options for fitting an ISOFIX child restraint system with ISOFIX brackets
Weight class Size class Fixture
Group 0: up to 10 kg G
F
Group 0+: up to 13 kg E
D
C
Group I: 9 to 18 kg D
C
B
B1
A
IL : suitable for particular ISOFIX restraint systems of the 'specific-vehicle', 'restricted' or 'semi-universal' categories.
The ISOFIX restraint system must be approved for the specific vehicle type (refer to the vehicle type list of the child
restraint system)
IUF : suitable for ISOFIX forward-facing child restraint systems of universal category approved for use in this weight class
X : no ISOFIX child restraint system approved in this weight class
: move the respective front seat ahead of the child restraint system forwards as far as necessary
3
: adjust the respective headrest as necessary or remove if required
4
On front passenger seat
ISO/L2 X
ISO/L1 X
ISO/R1 X
ISO/R1 X
ISO/R2 X
ISO/R3 X
ISO/R2 X
ISO/R3 X
ISO/F2 X
ISO/F2X X
ISO/F3 X
Seats, restraints
On the seats in the second
row
X
X
IL 3
IL 3
IL 3
IL
3
IL
3,4
IL
3,4
IL, IUF
3,4
IL, IUF 3,4
IL, IUF 3,4
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On the seats in the
third row
X
X
X
X
X
X
X
X
X
X
X