Expanding the load compartment by folding the front-passenger seat backrest forwards
WARNING Risk of becoming trapped when adjusting the seats
When you adjust a seat, you or other vehicle occupants could become trapped, e.g. on the seat guide rail.
When adjusting a seat, make sure 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 due to seat backrest folded forwards
If the front-passenger seat backrest is folded forwards, persons in the rear compartment could collide with parts of the seat adjustment mechanism, particularly in the event of an accident, sudden braking or an abrupt change of direction.
If there is a passenger in the vehicle and the front-passenger seat backrest is folded forwards, the passenger must sit on the rear seat behind the driver.
The backrest of the front-passenger seat can be folded forwards to increase the luggage compartment capacity.
Folding forwards:
Pull the release handle 
and fold the seat backrest fully forwards onto the sitting surface until it engages. Folding back:
Pull the release handle and pivot the seat backrest backwards until it engages.