Put wheels straight
With airbag undo the 2 allen bolt on back of wheel (iirc 4 or 5mm, might need to remove column trim for access)
then take airbag off (unplug connector) and place front down in the boot (I assume you know that you need to disconnect battery, then turn ignition on and wait for a minute before taking airbag off).
MARK THE POSITION OF THE STEERING WHEEL with white permanent marker.
Undo the nut (24mm socket)...
off it comes