I've never taken any notice of bleeding orders - it should be pretty obvious that as long as you bleed ENOUGH fluid from each caliper, that all the air will be removed.
On a vacuum servo brake system because you can only bleed a small amount at a time (without extra gizmos attached to the resoviour to keep it topped up) it makes sense to perform the bleeding in an order which will get all the air out with the minimum amount of bleeding, and there will be an optimum order for that which varies from car to car depending on the length and routing of the brake lines...
But on an earlier Hydraulic Cit (Xantia and earlier) it really doesn't matter at all - if you want you can just run a pipe from each bleed nipple (one at a time) back to the resoviour and put your foot on the brake for a while
In 30 seconds you can easily pump half a litre of oil through that line which is well beyond the amount of oil sitting in even the longest brake line....
Regards,
Simon
Brake Fluid Renewal C5
Moderator: RichardW