Mercedes-Benz CLA Owner's Manual page 65

62 Occupant safety
Overview of suitability of the seats for attaching i‑Size child restraint systems
i-Size identification
i‑Size is a standardised securing system for specially designed restraint systems.
The symbol indicates seats suitable for attaching an i‑Size child restraint system in accordance with UN R129 (
R
It is possible to attach child restraint systems that are permitted in accordance with
R
UN R44 as per the ISOFIX tables (
-
UN R129 as per the following i‑Size tables
-
i-Size child restraint system
(ISO/R2, ISO/F2X, ISO/B2,
ISO/B3)
page 59), or
/
Front passenger seat
X
X Not suitable for an i-Size child restraint system in the "Universal" category.
/
Left/right rear seat
i‑U
i-U Suitable for forward-facing and rearward-facing i-Size child restraint systems
in the "Universal" category.
page 57).