First of all lose the caps please.
Previous owner should be on the log book.
Dealer should know the history of the roof. It probably needs new seals or adjusting.
Sorry capitals not noticed pc numpty!
theres no previous owner on log book
thought maybe it was dealer owned and used as demo car,
four attempts are a lot for something that seems to be a common fault (warranty out soon then it'll hurt)
will see if it leaks this time
thanks for your time