davidemarciano,
Unfortunately, based on the service tag number, the warranty has expired. You can wait for a reply from other community members or contact the Dell Out of Warranty Support Team by clicking the link below.
It seems that this link is not bringing me anywhere. Is there an email address or something?
I find it quite absurd that even if my device is out of warranty (and probably with some factory issues I was not aware of) I can't receive proper support. I am trying to see if there is a Dell support center in Malaga, Spain (where I am currently working) to solve my issues.
P.S. I also have audio crackling issue from the right speaker... just to add to the list of things.
Battery swelling is a known fault causing the trackpad dysfunction. Dell had a program to send replacement batteries to all concerned for free. I have no idea how you would best contact them though.
The audio cracking from the right speaker is a blown speaker. I extended my warranty for one year and am currently on my third set of speakers.
There is a VRM over-heating issue with many XPS models. Google it and you'll find tons of information. There is a fix, which involves re-pasting the CPU and GPU and then adding a thermal bridge between the VRM chips and the aluminium base using layers of thermal conductive pad.
This laptop is a dog. I'll never buy Dell again.