Hello all, its my first time here, i have a 1993 Xm 2.0l and have been experiencing some problems with the hydractive solenoid. The first time i took it apart i found the green o ring was worn on one side and broken. This caused the suspension at the front to stay firm all the time. Fluid was actually leaking past the solenoid instead of through it.

I made up another o ring and fitted that in, it worked well for a few weeks, the pressure regulator cutting in every 12 seconds.
If i disconnect the solenoid and leave the engine idling, the pressure regulator clicks about every minute!.

Now i have to change the o ring again but i really need to find the exact size one or the original part. I know it has to be changed because the regulator clicks every 4 seconds.

Does anyone know where i find this item, Citroen Mauritius do not stock spares for Xm's anymore, i even looked on the microfiche and the solenoid is a complete unit and the o ring is not numbered.
Does the Xantia use the same solenoid block?.