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 left and right seat backrests are not engaged and locked in place, this will be shown on the multifunction display on the instrument cluster.
If the centre 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
![](../../assets/images/445473de0b52aab9354ae36531593424_1_-----.png)
of Top Tether anchorage
![](../../assets/images/59f79f0e0b52ac8d354ae36531593424_1_-----.png)
.
Vehicles with adjustable head restraints:
If necessary, slide head restraint
![](../../assets/images/423969810b52a683354ae36531593424_1_-----.png)
upwards
More.
Guide Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
under head restraint
![](../../assets/images/423969810b52a683354ae36531593424_1_-----.png)
between the two head restraint bars.
Vehicles without adjustable head restraints:
Top Tether belt with one seat belt strap: guide Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
past head restraint
![](../../assets/images/423969810b52a683354ae36531593424_1_-----.png)
on the side nearest the door.
or
Top Tether belt with two seat belt straps: guide one Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
past head restraint
![](../../assets/images/423969810b52a683354ae36531593424_1_-----.png)
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
![](../../assets/images/00f6fb490b52b046354ae36531593424_1_-----.png)
of Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
into Top Tether anchorage
![](../../assets/images/59f79f0e0b52ac8d354ae36531593424_1_-----.png)
without twisting.
Tension Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
. In doing so, comply with the child restraint system manufacturer's installation instructions.
Fold down cover
![](../../assets/images/445473de0b52aab9354ae36531593424_1_-----.png)
of Top Tether anchorage
![](../../assets/images/59f79f0e0b52ac8d354ae36531593424_1_-----.png)
.
Vehicles with adjustable head restraints:
If necessary, slide head restraint
![](../../assets/images/423969810b52a683354ae36531593424_1_-----.png)
downwards
More. Make sure that you do not interfere with the correct routing of Top Tether belt
![](../../assets/images/1ebc8ecf0b52ae72354ae36531593424_1_-----.png)
.