Had Xsara for four years and no problems,daughter has now had it for 6 weeks and twice in that time the Immediate Stop warning has appeared on dashboard.She has taken it to dealer for check but they could not find the answer to the problem.Their diagnostics could not detect anything. She says that their is a heating smell when it happens and and a hissing noise.Has anyone in the group had experience of this or can suggest what could be cause?Water level in radiator is Ok.
allan