Mercedes-Benz S-Class 2020, Owner'S Manual

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Approval categories in accordance with UN-
R44
Example of an approval label
R
Universal: child restraint systems in the
"Universal" category are approved for instal‐
lation in vehicles. They can be used, in
accordance with overviews of the suitability
of seats for securing child restraint systems,
on seats labelled U, UF or IUF.
The identification IUF refers to ISOFIX child
restraint systems in the "Universal" category.
These child restraint systems must also be
secured using Top Tether or support points.
R
Semi-Universal: child restraint systems in
the "Semi-Universal" category may only be
used if the vehicle and vehicle seat are listed
in the child restraint system manufacturer's
vehicle model list.
R
Vehicle-specific: child restraint systems in
the "vehicle-specific" category may only be
used if the vehicle and vehicle seat are listed
in the child restraint system manufacturer's
vehicle model list.
Approval categories in accordance with UN-
R129
Example of an approval label
R
i‑Size: child restraint systems in the "i‑Size"
category are approved for installation in vehi‐
cles with i‑Size mounting brackets. They can
be used, in accordance with overviews of the
66 Occupant safety