suspension on my citroen c5?

It is very difficult to determine what is wrong, I haven't worked much on these,tend to avoid French cars but my guess is there is an ecu which controls your suspension and with a fault being logged a suitable computer would be the way to go and would have fault codes etc to work on,as for continuing driving that will be your decision but would try and get it repaired sooner rather than later,good luck.

cdc
March 2014