Just a case of curiosity this one, its not my C5, in fact I have no idea who owns it, but it was doing something strange.
To explain, I recently saw an S1.5 C5 (the 2004-08 one), which was bob-bob-bobbing along the road like Rocky Robin, and so many Xantias before it with flat spheres or dodgy height correctors. Wondering just what the hell was causing it to bounce around so violently like some lowered boy racer chariot, I looked more closely and realised that it was driving at minimum ride height both front and rear.
I understood that with the C5's electronically controlled ride height, the Citroen specs said the suspension computer wouldn't actually allow the car to remain at minimum height if it started to move above say 5 km/h, and would automatically restore it to the standard ride height if that happened.
This magnificent specimen however was easily doing 30, 40 km/h, so I was wondering just how is this situation possible?
Same height correctors as Xantia (both failing simultaneously

Electronics / sensor screwup?
Anyone seen this before?
Is this the kind of thing we have to look forward to?

Will I ever stop asking silly questions?

It just made me curious, this is the first time I've seen one of the wonderful electronic suspension models behave in that fashion...
Ciarán