I cannot tell anything by that photo !
You need to photograph the damper, under the large yellow cap at the
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
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.