Using the securing systems for child restraint systems
Only secure children using a child restraint system which is appropriate to the height, age and weight of the child and suitable for Mercedes-Benz vehicles.
Always fit a child restraint system to a rear seat if possible.
Only use the seat belt system, the ISOFIX/i-Size mounting bracket or the Top Tether anchorages as securing systems for child restraint systems.
Attach the ISOFIX or i-Size child restraint system to both ISOFIX mounting brackets or i-Size mounting brackets .
or i-Size mounting brackets . or
Attach the i‑Size child restraint system to both i‑Size mounting brackets .
. The risk of injury can be reduced by Top Tether as Top Tether provides an additional connection between the child restraint system secured with ISOFIX or i-Size and the vehicle.
Vehicles with adjustable head restraints:
if necessary, move the head restraint upwards More. Guide Top Tether belt 
under the head restraint between the two head restraint bars.
under the head restraint between the two head restraint bars. Vehicles without adjustable head restraints:
Top Tether belt with one belt strap: route Top Tether belt centrally over the head restraint or:
Top Tether belt with two seat belt straps: guide each Top Tether belt to the right and left side of the head restraint.
to the right and left side of the head restraint. All vehicles:
fit the ISOFIX or i-Size child restraint system with Top Tether. Always comply with the child restraint system manufacturer's installation instructions when doing so. Hook Top Tether hook without twisting into Top Tether anchorage .
without twisting into Top Tether anchorage . Tension Top Tether belt . Always comply with the child restraint system manufacturer's installation instructions when doing so.
. Always comply with the child restraint system manufacturer's installation instructions when doing so. Vehicles with adjustable head restraints:
if necessary, move the head restraint downwards More. Make sure that you do not interfere with the correct routing of Top Tether belt . You can find additional important information on the safe transportation of children here:
Automatic front passenger front airbag shutoff More
Correct use of the seat belt More
Seats suitable for attaching belt-secured child restraint systems
Seats suitable for attaching ISOFIX restraint systems
Seats suitable for attaching i‑Size child restraint systems
Child safety locks for the rear doors More
Child safety locks for the rear side windows More