I've got a 2004 Panda with 60k fresh miles, used to be my mom's with barely any use but 5 years ago I became the main driver. This car had the common fault everyone with a dualogic seems to have of the juddering when pulling out of a stop light, in some cases it was severe, no way to park precisely in a tight spot without embarrassing yourself.
Anyway, the juddering calmed down to a "normal" level where it would still judder but it wasn't as severe. It seems during this time, the transmission unbeknownst to me, was leaking fluid all over our garage spot, only when I noticed, the oil stain had accumulated so much that it was about 50% of the entire garage spot.
We took it to 2 dealers over a year to advise on both the juddering problems, and consequently the later leak when I found it. The first, used to be an official dealer that turned into a specialist garage, quoted us for some diagnosis which felt like a rip-off, car was the same, but never had any faults whatsoever before or after this. It was after this however that very very occasionally (about once every 3 or 4 months) it seemed the clutch would stick/slip when cold, and you could press the throttle and only about 50/70% power was actually delivered, effectively, if it were a true manual, you were driving the car with both the clutch and accelerator pressed, restarting the car fixed this on the spot. Magically enough, over the months, the juddering seemed to slowly be going away by itself, it was less and less frequent.
When we took it to an official dealer that same year, after finding the leak and being nervous (Entire gearbox was soaked in greasy transmission fluid), they couldn't (more like they didn't want to it seems) find the culprit of where it was leaking from, they did however top up the fluid which they said was a little low but still had enough for the gearbox to operate, not sure how, given the leak was at least 4 years old and every week it would get 3/4 drops larger. They advised that so long as it had plenty of fluid inside, it shouldn't wreak havoc, that the fluid is the most important thing to keep it working. Not sure if this is just what they say when they don't actually know how to diagnose it or if it truly is sincere from them.
It seems some 2 months after this, the gearbox suddenly has stopped leaking anymore, it's still soaked as before sadly, since they didn't bother to at least clean it up, but after cleaning the garage stain with brake cleaner and putting a cardboard under the car, no leaks at all like before, to the point where I can park it without any fear of staining the garage concrete floor. The juddering is 95% gone too, only seems to happen occasionally on cold weather and for months now, you can even control the dualogic like a manual car parking on tight spots, very precise.
Now I know how disastrous these can be specially after the faults start to appear and spending years reading about the juddering online one can only be even more nervous, but I'd suggest the fluid top up if yours seems leaky or just juddering like mine and from there you can diagnose if at least the lack of fluid is the culprit, most likely it won't do anything from what I've read here for those with larger issues, but it truly helped mine which for being 20 (!!) years old, and being soaked up in oil right now, seems to be working like a champ, however as I stated, the self recovery it's had, started before we took it for said fluid top up, maybe mine just happens to be divine, one can only hope, but it still scares me how brittle these can be with no real support from dealers. I hope this can be of any help if yours is still working but starting to act up crazy, before you keep driving it dry like me and making it worse.