E39 540i/M5 Bilstein PSS Coil-Over Suspension

Bilstein's PSS coil over system for the E39 540/M5 combines the best features of the adjustable PSS9 but with fixed dampening rates and a lower price. The PSS kit features height-adjustable springs paired with performance-tuned monotube shock absorbers. It's better than the standard sport shock/spring package thanks to its adjustable ride height and matched shock and spring rates. With a lower ride height and stiffer springs you get less bodyroll and better handling. These are the most user-friendly coil over kits on the market - no special mounts required (works with stock 540/M5 mounts) and coil over spanner wrenches included for easy height changes. Bilstein backs up their technology with a limited lifetime warranty. TUV approved for fitment, safety, and quality!

PSS fixed monotube shocks are matched to the progressive-rate springs and tuned for performance. The PSS does not have the adjustable shock settings like the PSS9. Instead the damping is set at a performance level. Bilstein features a monotube shock design in this kit - one large shock piston instead of two smaller pistons. The larger piston is better at dissipating heat and controlling small shock movements. The rest of the shock is identical to the more expensive PSS9 - zinc coated shock bodies, aluminum spring seats and lock collars, fine rounded threads for precise height adjustments, and tuned progressive-rate springs.

The PSS is height adjustable! Ride height adjustments are done from perches on the bottom of each spring. You can set the ride height between 1.0 to 2.0 inches lower than stock ride height. On the E39 we recommend a front to rear rake of .75" (higher rear). Bilstein uses progressive-rate springs to keep the ride smooth yet sporty. Overall, the PSS springs are stiffer than other coil over kits and the results of Bilstein's extensive testing on the German Nurgburgring and Autobahn. Rear shocks are also coil over, just like the factory shocks. The struts are zinc coated for excellent wear and corrosion resistance.

The fitment of these is just like a standard shock and spring package. The front struts and rear shocks are compatible with the stock mounts. On the front, Bilstein has an ingenious upper spring perch that allows you to retain the stock spring radial bearing. We recommend getting new front upper bearings. Using the stock mounts keeps the cost and complexity down and allows for TUV certification. You can also be assured of the stock mount's quiet and long-lasting performance. The assembly of the front strut is the same as the factory strut, except you use the Bilstein upper spring perch in place of the stock perch. A OEM mount kit or adjustable camber plates are also available. Install instructions and diagrams included.

If you're looking for a supremely capable and high quality suspension, then look no further than the Bilstein PSS. It combines all of the best German engineering with real-world development, and a lifetime warranty.

Assembly Photos OEM strut mount KMAC Camber/Caster Plates Note: photos show mounts installed. This is for reference only. Mounts are sold separately.


This Bilstein PSS9 coilover kit fits the following BMWs:
1997-2003 E39 BMW 540i M5