ok thanks yes it is hydractive, i just realised i didn't bleed the blakes afterwards, i think ill give that a go as well as height adjustment clean then have a good read on the electrowave, cheers

Yes indeed the plastic clip has popped off. Have ordered a bag o bones from local citroen dealer at £2.19 a pop

will pop one one then maybe use another when i get round to taking the whole unit off and giving a good clean. giving me a couple of spares. I am amazed this was so exposed, may have to design some open ended plastic cover to protect from the worst of the muck.

Back to smooth ride and no dodgy looking jacked up rear!

I did actually have the back on axle stands but still didn't feel safe to me, ended up getting some ramps to be sure as well as being able to get underneath and see the whole mechanism at full low / high.

Bag O Bones ordered at £2.19 each from local Citroen garage and had a bash on Friday. My problem was the bone had popped but the actual ball joint that connects to the height adjuster had come out of it's socket and was dangling on the the end of the dog bone. A clear example i imagine of how a seized / seizing adjuster can affect this mechanism.

I replaced the dog bone anyway and gave the whole unit a clean n grease while placing the ball joint back in with a little extra ( still a good fit but had certainly had a good tug ) to keep it held. Maybe next year i will taken the whole unit off / strip and clean and look for a more permanent solution to keep the ball joint in, possible a spot of weld?

I think the worst par of this job was actually placing the spring clip that holds the dog bone back on, it completely had me for a while, got there in the end though. I think i read some people were having difficulty finding something to hold these on. Mine looked like a triangle ended clip ( triangle end hooks on to end of dog bone ) one end and a hooked holder at the end (two u shaped clips that clip over the end of the clamp arm and latch on when released ).