Securing Top Tether
WARNING Risk of injury or death if the rear seat backrests are not locked after Top Tether belts are fitted
The rear seat backrests may fold forwards when you are driving.
As a result, child restraint systems will no longer be able to perform their intended protective function. This may also cause additional injuries.
Always lock rear seat backrests after fitting Top Tether belts.
Observe the lock verification indicator.
If the rear seat backrest is not engaged and locked in place, the red lock verification indicator will be visible.
If the child restraint system is equipped with a Top Tether belt:
The risk of injury may be reduced by Top Tether. The Top Tether belt enables an additional connection between the child restraint system attached with ISOFIX or i‑Size and the vehicle.
Fold up cover 
of Top Tether anchorage 
.
of Top Tether anchorage . Vehicles with adjustable head restraints:
If necessary, slide head restraint 
upwards More.
upwards More. Guide Top Tether belt 
under head restraint between the two head restraint bars.
under head restraint between the two head restraint bars. Vehicles without adjustable head restraints:
Top Tether belt with one seat belt strap: guide Top Tether belt over the centre of head restraint .
over the centre of head restraint . or
Top Tether belt with two seat belt straps: guide one Top Tether belt past head restraint on the right and left sides respectively.
past head restraint on the right and left sides respectively. All vehicles:
Fit the ISOFIX or i‑Size child restraint system with Top Tether. In doing so, comply with the child restraint system manufacturer's installation instructions.
Hook Top Tether hook 
of Top Tether belt into Top Tether anchorage without twisting.
of Top Tether belt into Top Tether anchorage without twisting. Tension Top Tether belt . In doing so, comply with the child restraint system manufacturer's installation instructions.
. In doing so, comply with the child restraint system manufacturer's installation instructions. Fold down cover of Top Tether anchorage .
of Top Tether anchorage . Vehicles with adjustable head restraints:
If necessary, slide head restraint downwards More. Make sure that you do not interfere with the correct routing of Top Tether belt .
downwards More. Make sure that you do not interfere with the correct routing of Top Tether belt .