Vauxhall CASCADA Owner's Manual page 188

186 Driving and operating
Dismounting the coupling ball bar
Open the protective flap and turn the
key to position c to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out
coupling ball bar downwards.
Insert sealing plug in opening. Fold
away socket.
Stow and secure the coupling ball bar
as mentioned above.