Opel Automobile Owner's Manual page 44

44 Keys, doors and windows
Join together the unfolded ends of the
wind deflector: Press in the pin at the
slider, guide the hinge over the pin
and release the slider so that the pin
engages in the hinge.
Insert the guide clips of the wind
deflector in the seat belt recesses
between the rear head restraints.
Pull the toggle of the right and left
locking pin and turn to lock.
Straighten out the wind deflector, turn
the toggle back and engage the
locking pin in the recess in the side
trim.
The wind deflector can be folded back
when not in use.
If the wind deflector is folded and the
rear seats are unoccupied, the wind
deflector can remain mounted in the
vehicle when the roof is closed.