I eventually got round to changing front/rear Hydractive and 4 corners.
40 mins

On Xantia Estate.
They all unscrewed by hand
Both rear corners had split, I don't rate GSF spheres myself.
I used non hydractive for corners what a difference, lovely soft ride, feels like completely different car.
Gone from fast positive handling to motorway cruiser.
06 C5 2.0L HDi Exclusive Estate 20020k and rising.
1987 Citroen CX Prestige. De Corps Brun Maya - cuir blond tabac, très chic
08 Jaguar X-Type 3.0V6 Sovereign Estate - Green (HGZ) - Leather Ivory seats.
citroencx.co.uk