I have a 2001 C5 estate and ther eare two problems with the suspension. Firstly the front suspension seems at time to ride high causing a loss of stability in the steering of the car. it does this intermitently (not that often) but i presume this is only going to get worse and i'd rather nip it in the bud. Secondly on the rear suspension there is intermitant creaking when i go over bumps or when passengers get in or out of the car and when i park it up. it seems to be at it's worst in wet weather conditions. does something need greesing or replacing. Once again i'd rather nip it in the bud before it becomes a major problem. Thanks Mark