Mercedes-Benz CLS Owner's Manual page 60

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.
Semi-Universal: child restraint systems in
R
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.
Vehicle-specific: child restraint systems in
R
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
i‑Size: child restraint systems in the "i‑Size"
R
category are approved for installation in vehi‐
cles with i‑Size mounting brackets. They can
be used, in accordance with overviews of the
Occupant safety
suitability of seats for securing child restraint
systems, on seats labelled i‑U.
The identification i‑U refers to i‑Size child
restraint systems in the "Universal" category.
These child restraint systems must also be
secured using Top Tether or support points.
Observe the suitability of vehicle seats
Depending on the approval category, there are
forward-facing and rearward-facing child
restraint systems. Their use can be restricted for
certain vehicle seats:
Suitability of the seats for attaching ISOFIX
R
child restraint systems (
/
Suitability of seats for securing i‑Size child
R
restraint systems ( page 59).
/
Suitability of seats for attaching belt-secured
R
child restraint systems (
/
57
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page 63)