In Reply to: Bilsteins for 528i posted by AllanS on January 26, 2000 at 21:34:48:
: I'm not sure Bilsteins are available for E39 yet, are they? Was your 528i the previous series? Also, did you use regular, Heavy Duty or Sport version of the Bilsteins? Thanks, AllanS
: : I recently bought a 540iaT with sports package and have not done anything yet. However, I have owned several older 5 Series cars and I found changing to Bilstein shocks totally transforms the car without making the ride harsh. It gets substantially firmer and the side to side pitching goes away completely. On my later 528i I also bumped up the sway bar diameters. This made it behave like a slot car on the turns. It had no lean whatsoever, but the down the road street driving still remained civilized and pleasant. I understand that there are some really fine spring kits these days, but I never found them necessary since I don't do that much serious canyon driving. The other thing that helps steering responsiveness is rim width. A 5 series should have a 225 or more tire width on a 7" to 8" wide rim. This reduces the amount of sidewall roll over which also contributes subjectively to the feeling of leaning during transient manuvers.
I had an original 1975 530i and a 1979 528i. I put Bilsteins on both and the 79 got the sway bars as well. I sold it to a friend who had it until last year when the engine finally gave up at 292,000 miles. The thing was still a kick to drive and civilized as well. Of course the motors and suspensions have been greatly refined since then, but basically it should do the same. At the time I got the Bilsteins only 2 valvings were offered and I got the less stiff one, but I believe it was called Sport. The serious stuff is for racing. I haven't checked yet for my wagon because it is too new. I would be very suprised if Bilstein dosen't offer something for the sedan by now.