neato4u,

Yeah you should change your CVTF every 20,000km to be safe,

Your case should be faulty steering rack, happened to quite a number of members in TeamCity as well.
My wife i-DSI encountered the same problem changed it around 3rd year final month (lucky still under warranty), according to SA should cost around 1-2k.

Expecting to trade in her City before CNY for new City E-spec,