Hi, the other posts here seem like good advice, however when I first got my 280SL several years ago (no power steering), the steering seemed very light and had a tendency to wander or float. I noticed there is a damper, like a shock absorber that is fitted in behind the steering link between the front axle tie rod ends. It was very easy to remove this and when I did, i found that it was completley shot. I replaced it ($NZ60) and the steering improved straight away. Not sure if the 230 has these?