Bleeding Coolant - 1.4 TSi CAXA

I may have to change the water pump soon on my 2012 1.4 TSi ( The earlier CAXA engine ) after 82000 miles. Not too bad a job as it's driven by the serpentine belt and is thus reasonably accessible. At the moment the slight coolant leak has completely stopped, hot or cold. Not quite sure how this could happen. However, it's bound to be back sooner or later. I suspect the seal on the pump spindle is giving out, given the position of the pink drops on the floor of the garage and slight rust marks on the bare steel pump pulley boss.

The question is, does this particular engine coolant system self bleed when refilling or does it require intervention ? I'm quite prepared to squeeze the odd hose to burp air and top up once or twice over a few days as things settle.