Some time ago I started compiling my own guide to the Xantia's hydraulic system - not as a rival to The Citroën Technical Guide by Željko Nastasic´ and Gábor Deák Jahn but simply because I found their manual to be rather hard to understand as it applies to Xantias; it's not always as fluent and colloquial as it could be, and as it covers all hydraulic Citroëns, you have to know what is relevant and what to add from another section or other sources.
My intention is to make the finished document available on my site as a PDF.
I'm not altogether happy with one of the sections that I've completed so far (Regulator) simply because I've never stripped one and it's one of those items in the Technical Guide where you have to know what applies to Xantias (all?) and what doesn't.
(edit)
It's on my site here
(end edit)
If anyone with the necessary technical knowledge can spare the time to scrutinise my effort, I'd be grateful.
Thanks in anticipation
Guy