Thanks Paul...took it out today from cold not a problem..then everything nicely warmed up twitching starts....always to the right,,i did try something which was interesting,,if I I take it out of drive and put it into neutral..the steering shakes like im on cobble stones,then engaging the drive again it stops smooth then will twitch randomly after.....needless tosay im an electrician not a mechanic..booked in to Citroen service centre will post what they find ....