Citroen XM Forum

Only once was I able to depressurise the centre spheres and that was when I had a faulty suspension ECU, and I've done a few! If someone has found a way of doing it I would like you to tell me how. AlsoI have never found it necessary to depressurise the system to remove the corner spheres, all you have to do is put the suspension on its lowest setting and leave it for a couple o minutes.

Peter

Peter.N. wrote:Only once was I able to depressurise the centre spheres and that was when I had a faulty suspension ECU, and I've done a few! If someone has found a way of doing it I would like you to tell me how. AlsoI have never found it necessary to depressurise the system to remove the corner spheres, all you have to do is put the suspension on its lowest setting and leave it for a couple o minutes.

Peter

If you depressurise the system then open a door it will activate the electrovalve so open the stiffness valve if there is any pressure left in the system.
When I changed my spheres the rear centre one was hard to undo and leaked a fair amount out as I hadn't depressurised the system, when I did the front it was a very easy to undo and hardly spilt a drop as I had depressurised.

That only ever worked for me once, with the duff ECU which wasn't holding the valves fully open, I've never been able to get it to work since. If the spheres are completely flat they dont need depressurising - there isn't any pressure in them.

Peter

Peter.N. wrote:That only ever worked for me once, with the duff ECU which wasn't holding the valves fully open, I've never been able to get it to work since. If the spheres are completely flat they dont need depressurising - there isn't any pressure in them.

Peter

The hydraulic system holds the pressure which then blows oil out as you undo the sphere.

I'm talking about centre spheres only.