Cee'd 1.6 CRDi LS< 10000 miles- knocking from steering rack when traversing uneven ground, even a manhole or drain cover. Dealership says "maybe a characteristic of the car" We'll check when we get another similar model for service. If latter doesn't knock, then arrange a warranty replacement; if latter does knock, then no action. Given this last "solution", that tells me that there are 2 cars out there with the same problem, and it's an unsatisfactory process. I asked that they called their technical dept, but this was declined. Am I being unreasonable?