Pleased to read this comment about the suspension on some C4s. I was beginning to think it was just me complaining. My dealer and Citroen UK assured me that no one else was complaining about painful potholes and a banging suspension. Eventually, and after much negotiation and arguing, I have managed to have new shock absorbers fitted that do seem to have largely solved the rear suspension problems I've had. I wish I had managed to find that French C4 site.