Just FYI. My car VZ2 '21 plate, had two of these units in 2022. It was then back with the dealer by June 2022 and after waiting six weeks with no sign of progress on a third I rejected the car - Cupra were very good in resolving although the process took a couple of months.
In the meantime, I'd placed a SORN on the car. It was November 2022 before I got a ping on the app to say I'd been removed from the car, I assumed that meant the part had been fitted, but I have no proof of that. January 2023 the car still shows with the SORN in place, meaning it remains off the road - if it is now fully functional I can't see it hanging around as otherwise a really good car to drive.
I have to agree with posts above, the 5F may be the failing part but something else in the car is bringing it down, either that or its so seriously close to its service parameters when in use it takes nothing to push it over the edge.
If I'd paid cash for the car I would have rejected it by now.
Mine is a lease so I'm a bit stuck as if I did reject, I wouldn't get anything remotely similar for the same price.
They can't get a replacement due to the delays in build.
I am at least putting miles on someone else's car at the moment!