Expanding the load compartment by folding the front-passenger seat backrest forwards
WARNING Risk of becoming trapped during seat adjustment
When you adjust a seat, you or other vehicle occupants could become trapped, e.g. on the seat guide rail.
Make sure when adjusting a seat that no one has any body parts in the sweep of the seat.
Observe the safety notes on "Airbags" and "Children in the vehicle".
WARNING Risk of injury if the seat backrests are folded forwards
Rear passengers may come into contact with parts of the mechanical seat components.
If the front passenger seat backrest is folded forwards and there is a passenger in the car, the passenger must sit in the rear seat behind the driver.
The backrest of the front-passenger seat can be folded forwards to increase the luggage compartment capacity.
Requirements:
The rear seat behind the front-passenger seat backrest that is folded forwards and the rear centre seat are unoccupied.
Folding forwards:
pull release handle 
and fold the seat backrest fully forwards onto the sitting surface until it engages. Folding back:
pull release handle and pivot the seat backrest backwards until it engages.