Opel CASCADA Owner's Manual page 44

42 Keys, doors and windows
10. Haul in the attached strings
around the marked position at the
hinge on both sides and pull the
end of the string through the loop,
as shown in the illustration.
11. Deposit the end of the strings at
the front.
12. Pull out the soft top by lifting up the
front bow (1) and simultaneously
the tension bow (2) on both sides.
13. Move the front bow (1) to the
windscreen frame.
14. Remove the small lid in the
windscreen frame trim using a
screwdriver which is inserted in
the recess of the lid.
15. Insert the 6 mm Allen key into the
closure and lock the latch by
turning the Allen key clockwise to
its end position.