Hi Norrie,
My Xm is running well. After having it for 18 months I can say it was worth the money. It does not use any oil you don't have to top it up.
The ride is a bit hard. There is now hydraflush in the system and when I have it to change back to LHM I will have the "balls" refilled.
The autobox is doing its job perfectly. I plan to change oil in it with every engine oil change. It's not that much money.
I can't tell how much is my comsumption in MPG but it's 8.6 pro 100km. I can go nearly 1000km with a tank. It's not that bad from a heavy automatic car.
I have the intermittent ABS out of order text, but usually after next starting it disappears. I will use your description to sort it out.
Another small inconveniance is that some water comes in through the roof window. Unfortunately you can't find the hoses from the bottom end I till this time I did not want to lower the roof lining (or what do you call it

. Interesting but I had the same problem with my former BX 14 RE from '87. It was my first Citroën and I had it for 7 years. After buying a Ford Mondeo estate with all the toys I sold the BX. The Mondeo was not a bad car but without the hydropneumatic suspension it was like a coach. I had it for one year only and bought the Xm.
There is a common failure with S2-s that water comes in at the front left door and fills the map holder on the door. Do you know anything about this?
Your CD is really helpfull. It's a pity that someone started to make money from your work.
Regards,
Ferenc