Opel 2015 Adam Owner's Manual page 53

Weight class
Group I: 9 to 18 kg
or approx. 8 months to 4 years
Group II: 15 to 25 kg
or approx. 3 to 7 years
Group III: 22 to 36 kg
or approx. 6 to 12 years
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
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 to one of the foremost adjustment positions
** = remove respective rear head restraint when using child restraint systems in this size class 3 34
Size class Fixture
D ISO/R2
C ISO/R3
B ISO/F2
B1 ISO/F2X
A ISO/F3
Seats, restraints
On front passenger seat
X
X
X
X
X
X
X
51
On rear seats
X
X
IL, IUF**
IL, IUF**
IL, IUF**
IL
IL