Which Lexia would you recommend

[masood_ilyas]

This relates to a Citroën Xantia 1.9TD Auto, a senior citizen from 1997, with 144k miles on the clock.
I am contemplating having a go at replacing the AL4 autobox's pressure regulating valves, as they are throwng up limp home intermittently.
I realise I will need a Lexia for a good diagnosis, and reset the oil counter afterwards. I also have in mind replacing Keyfobs which requires registering them in the system. with all these projects in mind which Lexia model whould you recommend which if needed could be connected to my laptop.

Thank you

Masood