The front thrust rod bushings—also referred to as tension strut bushings—are known to fail occasionally. The oil-filled rubber mounts weaken and crack over time, causing a mushy road feel and shuddering in the steering wheel when going over bumps. These worn bushings should be replaced.
Car Problem Reports
BMW 535i Front Tension Strut Bushings May Fail
BMW 535i Problem
Visitor, 1990 BMW 535i, 200,800 mi
I had the bushings replaced about 50,0000 miles ago and the drive shaft about a year ago I do a lot of driving overall this car is amazing for it's age!