I'd guess a loose wire on the Servotronic server in the steering box... the E32s have speed sensitive steering assist electronically controlled & drivern off the speedo. The single wire can corrode - maybe check for Servotronic in the archive.

Could also be glazed belts slippping until the warm up too, but I dunno how well you checked the belts..

Max

I started my 735i up to move it into the garage today, after it had been standing for about two hours. When I tried to turn the steering wheel it was very hard to turn, almost like the power steering had gone out to lunch. Then all of a sudden it kicked in, then started cutting in and out at about 0.5 second intervals. I stopped the car and got out to check the fluid level, belt etc, but could not fault these. I then tried again, and it was fine, and later in the day it was fine as well. Has anyone ever had this experience?? Thanks for your help in advance.
Craig
1987 735i