The 15" wheels won't cause a problem. It sounds to me like a ball joint, drag link, tie rod end or engine mount. I have the same noise in my 83 300TDT. It even pops as I shut the engine off. Been doing it for about a year now. Gotta take a look one of these days. MB hasn't had a problem with steering boxes breaking away since the early 70s. It was kinda neat how the box could fire a bolt like a bullet on a turn. We had to reweld the frames, and some models had a factory modification plate that was bolted to the frame. Seriously I don't think your problem is severe, but finding it can be tricky. You'll probably need to move the car slowly and make the noise while someone observes. You probably won't be able to duplicate the problem under static conditions.


Peter

__________________
Auto Zentral Ltd.