I posted about this issue before, but still haven't been able to resolve this. The car in question is an '02 530i with sport pkg, 36k miles. Since I got it at 30k miles, it has not been very solid/surefooted at speeds of
85mph and above. It feels floaty, like I'm getting hit by crosswinds on a calm day and the whole car slightly sways to either side. I have to keep correcting with the steering wheel to remain in my lane.I had the alignment done/rechecked twice. All the suspension and steering components were visually inspected by 2 different shops - they all claim everything is intact. I have a new set of tires, but the issue existed on the old tires as well, so I don't think it's a tire issue.
I don't want to take it to a bmw dealer as they'll probably tell me to replace all suspension components and charge me an arm and a leg for it. I don't want to blindly begin replacing component after component either. Isn't there some way out there to properly diagnose what is responsible for such stability issues? While it isn't totally awefull, it still takes away from the "ultimate driving machine" experience. I feel like I'm driving a buick.
Where should I start?
Thanks, Pete