Adjusting the angle of the rear seat backrests (cargo position)
WARNING Risk of injury if the rear bench seat/rear seat and seat backrest are not engaged
If the rear bench seat/rear seat and seat backrest are not engaged they could fold forwards, e.g. when braking suddenly or in the event of an accident.
If this is the case, the vehicle occupant would be forced into the seat belt by the rear bench seat/rear seat or by the seat backrest. The seat belt cannot protect as intended and could result in additional injury.
Objects or loads in the boot/load compartment cannot be restrained by the seat backrest.
Make sure that the seat backrest and the rear bench seat/rear seat are engaged before every trip.
To enlarge the load compartment, you can move the seat backrests on the second row of seats into a steeper angle (cargo position).
Setting the seat backrest:
hold the seat backrest 
in place with your hand or back. Gently pull one of the release loops 
and fold the seat backrest forwards.
and fold the seat backrest forwards.