Opel CASCADA Owner's Manual page 208

206 Vehicle care
2. Install the wheel wrench ensuring
that it locates securely and loosen
each wheel nut by half a turn.
3. Ensure the jack is correctly
positioned under the relevant
vehicle jacking point.
4. Set the jack to the necessary
height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Attach wheel wrench and with the
jack correctly aligned rotate
wrench until wheel is clear of the
ground.
5. Unscrew the wheel nuts.
6. Change the wheel. Spare wheel
3 207.
7. Screw on the wheel nuts.
8. Lower vehicle.
9. Install the wheel wrench ensuring
that it locates securely and tighten
each nut in a crosswise
sequence. Tightening torque is
140 Nm.