I'm about to correct the ride height on my Xantia, because it's a bit lower than it should be, according to specifications in Haynes.
So, I was browsing the net and finally found some excellent pictures of HC linkage on Xantia (it's different than on other models, although it works on the same principle).
If someone's interested, here's the link
http://www.amt23.hotmail.ru/correct.htm
Server seems to be overloaded, so keep trying
Thx to Aleksei for the pics