In Reply to: Re: E34 WANDERING.... posted by Phil Coppin on November 03, 1999 at 11:48:32:
: If you have low profile, wide tyres it could be tramlining or if not, try your idler arm or pitman arm for wear.
Also check the idler bushing (can be replaced), experiment with your tyre pressures, and see if your steering box has excessive play (can be adjusted).
If your tyres are excessively worn, you can also get wandering.
I found that on my '91 535, replacing the idler bushing and get the box adjusted made a very pleasing improvement to the car's steering response and straight line stability.