I have a citroen c5 estate, 2001reg. the n/s/r suspension unit is leaking fluid, it is hard to see from exactly where, is there a common problem? will chaning the orb solve the problem? if so how is this best done and how do you depressurise and repressurise the system

https://www.honestjohn.co.uk/forum/post/index.htm?t=58414 hope this helps !

Most likely one or more of the hydraulic spheres are malfunctioning or even leaking ( a common problem). You should have it checked by a citroen mechanic as it can easily cost you upto $600-1000 if they need to be replaced (normally after 100.000-120.000 kms). Check if the ride height adjustment works correctly. If I remember correctly it has 10 spheres (the Xantia Activa was the model with the max. of 11 spheres), if the system fails and you take the car for a drive it usually results in a bumpy drive, specifically when braking which jumps up the back end, something which normally doesn't occur as the system corrects it.

Maybe Wrong built in?

It means battery charging fault.

No it would leak and you would see it ,inside the sphere is a nitrogen filled bag and this may have split ,renew the spheres and go from their ,their not expensive on a exchange basis about 30 quid or so each

fuel pump has nothing to do with suspension ....i have same prob ..engine runs ok and can drive/reverse ok but car will not rise so topped up LDS fluide reservoir ,checked all fuses ok ,no visible leaks so reckon hydraulic pump worn out...will look on ebay for one

Check the hoses at the inlet manifold and throttle body aren't loose or leaking (vacuum leak)

faulty fuel pump or pressure low

blocked injector or fuel injector system fault

fuel pipe damaged or blocked

Since you have tried several fuses even stronger which you shouldn't and still blowing them, surely you have a serious suspension problem and I believe visit a qualified Citroen Garage for further inspection and repair if is required.

No. The levelling valve leak is usually an indication that there is wear in the hydraulic system elsewhere. Probably in the suspension cylinders. They supply too much hydraulic fluid on the return system when they get worn and as all connections are push fit on the return side leaks will show up at the weakest point.
The valve itself only moves 2mm max and not really a servicable unit.
How is the rest of the suspension? Do you have the electro hydraulic system with the larger pipes feeding the spheres? Some unscrupulous people neglect to replace or recharge the two centre spheres because they are difficult to access and this increases pressure on the whole system.
Replacing the valve is not a big job. But please be aware there are serious pressures involved and could result in injury. Also the set-up procedure has to be carried out on a 4 post ramp with Citroen tools.
Hope this helps.

Ok, two possibles here. One is that your rear spheres have lost their gas. (Most likely, especially given age of car). Easy enough fix, and the spheres can be got from the likes of allmake for about 30 quid each. Other possibility depends on a couple of factors: if the car doesnt rise at all, after starting or changing the ride height, your main reservoir is probably at fault. If it does rise, but only at the front, then there is a fairly common issue within the levelling system. i cant remember exactly, but there is a ring that needs replacing. Give a citroen dealer a ring...they may even explain it over the phone...