After searching on Howto's for Brake Bleeding process, I still could'nt find when to do the VAG for ABS Bleed.

I know the process of ABS Bleed though. (For Reference, from RossTech)
[Select]
[03 - ABS Brakes]
[Basic Settings - 04]
Group 002
[Go!]

But I'm not sure when to perform the above procedure.

Do I have to do it after every Caliper bleed.
Passenger Rear + ABS Bleed
Driver Rear + ABS Bleed
Passenger Front + ABS Bleed
Driver Front + ABS Bleed

Or probably before;
ABS Bleed + Passenger Rear
ABS Bleed + Driver Rear
ABS Bleed + Passenger Front
ABS Bleed + Driver Front

Or may be just do it once, after all the calipers are done.

Appreciate any help here guys.
May be the answer is in the forum somewhere and I can't find it.
Could be something very simple. But anyway,
Thanks for the replies.
[:-]

2001 Audi A4 1.8T Quattro Tip

 

Its really not needed unless you replaced the ABS unit

 

Even better ... Thanks Tech04.

 

True. I flushed my fluid simply by doing a glorified brake bleed, starting at the right rear and keeping the reservoir topped up as I proceeded. It was very easy and pleasant with three people, my elder son on the bleeders, one of his college buddies on the brake pedal, and me "managing" and keeping the reservoir from running dry.