I failed to get mine apart, still fitted to car ( UK TCS so older S2 style stalks and wheel centre horn push). I still haven't but will be revisiting at some point as I suspect bushes are worn (horn will sound if wheel is twisted - think cornering sharply and bracing yourself on wheel, or when steering at slow speeds when reversing and twisted round in seat).
With hindsight:_
(1) I didn't remove the clip for self cancelling the indicators. I'm not sure how easy this is or even if you have to but I suspect you do.
(2) I can't remember if I left keys in ignition and turned on (battery disconnected) so steering lock was off, though I'm reasonably sure I did.
Has anyone changed the steering column bushes while outer column is fitted to the car?
I was fixing horn push at the time as PO had wired this to fan switch on dash!
I never managed to separate wheel boss from column, just unscrewed wheel from boss. I have pulled now for when I retry, put I have to separate plastic shroud from back of wheel first in order to have somewhere to locate them without causing damage.
Please keep us informed on how you get on.