Hmmm.................................. 
Did a fair bit of driving over last weekend and whilst generally MUCH better it did still have the odd "moment".
One in particular was noticeable; I was doing at most 20mph turning right around a very large (sized for artics) empty roundabout on a backwater road (Industrial estate shortcut on Sunday lunchtime, so deserted).
As I started to turn left to exit it juddered a few times as if changing it's mind about what gear (2nd or 3rd I'd guess) then settled down OK.
I was driving VERY sedately as I had a frail 93-year-old passenger in the back!
The centre (Torsen) diff has had its oil replaced, but the rear one hasn't (drain plug in too tight) so not sure if that might be relevant.
Just wondering if the gearbox ECU might be suspect; if so are they swappable or do they need recoding?
I do know (think I mentioned this before) that my car has had a "chip" replaced ("Superchips" early in life, before me) to remove the 250kph limit and allegedly adjust the midrange gearchange points - would that be in the gearbox or engine ECU. It was only 1 chip as I have the original.
As I have never, and will never, exceed 250k in this car I'm very happy to revert to "S8 standard". 
Further thoughts anyone?
Also can anyone outline or explain how the gearbox and ECU interact, i.e. what measures and decides what and how changes are controlled, as I believe there are some electronics inside the box itself - or are they just sensors and actuators?
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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