How comfortable are you wth a wrench and how small are your hands. Both help on German cars lol. I’m just generalizing as I’ve never had that done or help get t done though. That said like Justin I haven’t heard of the PS pump frequently going on one of these but doesn’t mean it hasn’t happened.
Also, how much power steering fluid is there left or how much came out on the ground? Have you checked? I imagine it may have been low then you got a kink or other issue in the line or a fitting resulting in your current situation.
Imo, if you ever get in there to repair something and you need to mess with lines / fittings or just because and miles are up there I would replace if you are confident in your ability. And the repair includes repairing or replacing something near there.
All these lines, fittings, etc take a beating over the years especially in varying temperatures and tough climates. And unfortunately these are the items that VAG + Porsche and BMW etc. tend to cheap out on (lowest bidder with decent design) to make a profit.