its not Hydractive if it does not have the button with the orange light
near the height control and 2 extra spheres under the car. All post-94
xantias have an antisink system.

No, VSX and Exclusive Xants were the only ones to get Hydractive.

Hydractive has an extra sphere each end which is cut in and out of circuit
according to whether the suspension should be soft or needs to be firmer.
There's a button next to the height control for "Normal/Sport" (Hydractive
II) or "Auto/Sport" (Hydractive I)

Neil.

I cannot tell anything by that photo !

You need to photograph the damper, under the large yellow cap at the
threaded end.

If your car is the SX model then it is not hydractive, hydractive
suspension was only fitted to the VSX and later the exclusive models,
these cars have a sport switch, enabling the driver to select a sport
suspension mode.

Anti sink was fitted to all Xantia's in about 1994

The anti sink cars have a 6 + 2 pump and anti sink valves fitted.

Take another photo and I will tell you what the sphere is from. What I
can tell you is the sphere is definatly a recharged sphere, as it has a
replacement filler plug under the smaller yellow cap, about 10 years
ago, a Dutch company were selling charging rigs that used this type of
filler plug, a lot of people bought them and jumped on the band wagon
of selling recharged spheres, some OK and some were dismall, but you
pays yer money and take a chance.

Personally, I wouldnt use it.

Regards
     Slim

The 2 rears were done end of last year. I know there is the main
accumulator, is there another.??

I'm not so good at changing the ones underneath its not easy to lift the car
with the pressure out the system.

What does a fault accumulator do, or not do as the case may be.

Thanks for all you help
Neil