Ok, so back to our topic
What is the current situation with the update? So far I haven't heard many (if any) post software update reports from Ateca users.
I am on the fence regarding the update, do not know if it is worth at all in my case.
I sort of understand what the severe symptoms could feel like since I have both in very light form. A very slight unevenness at cold start sometimes and some lack of power in second gear at very low rpm. The first does not bother me at all to be honest, since it is too slight, the 2nd gear "flat spot" happened twice in two months and 2K miles at very low rpm and I just raise it to 700-1000 and the car is pulling quite impressively actually. (This is from the one who was driving a Mini Cooper S with a 2 litre turbo before that.)
In my case the effects are very similar to other Miller cycle engines from other manufacturers, and from that perspective it is indeed an engine characteristic rather than a faulty engine. So I don't expect the update to improve my car. Probably the variable turbo charge which was implemented here to compensate for the Miller (or as they call it Budac) cycle at low rpm is just not as effective as they hoped it would be.
That's how I see it anyway.
And for the sake of balance I have to say that this engine is over three y.o. already, many car made well over 50K and I haven't heard any complains about the pistons, rings, belts, valves, overheating, high oil consumption etc etc. Very much unlike the 1.4 TSI of old which was initially blighted with defects. I hope it is good sign. Don't kill me.