Bilstein B16 PSS9 Coilover Suspension Kit for BMW Z4 E85/E86 (2002-2009) | Height & Damping Adjustable Monotube | Roadster & Coupe incl Z4M | Lowering Kit/Adjustable Shocks & Springs | Fast Road/Track | Part No. 48-104739

Bilstein B16 PSS9 Adjustable Suspension for BMW Z4 E85 and E86

Looking to sharpen turn-in, boost stability and keep comfort for daily use on UK roads? The Bilstein B16 PSS9 adjustable damper and spring package transforms the BMW Z4 platform with a precise, confidence-inspiring setup that is easy to dial in for fast road and track-day driving. Part number 48-104739.

With a simple on-car rotary adjuster offering 10 distinct settings, you can quickly tailor the damping to suit B roads, motorway runs or circuit work. The threaded body allows a purposeful drop for a lower centre of gravity and a cleaner stance while maintaining compliance. Expect crisp steering response, flatter cornering and impressive ride quality that makes the Z4 feel planted without being harsh.

We have installed this kit on customer cars at MJ Modifications and the feedback has been outstanding. Owners praise the build quality, the straightforward adjustment and the real-world performance gains on British tarmac in all weather conditions.

Key benefits

• 10-stage damping adjustment via an accessible dial for quick fine-tuning
• Linked rebound and compression setting with clearly defined clicks
• Ride height adjustability approximately 30 mm to 40 mm lower for optimal stance and handling balance
• Durable aluminium spring perches and lock rings for long-term reliability
• Triple-C-Technology anti-corrosion coating engineered to withstand UK winters
• Robust round thread for smooth height changes
• Premium sport springs for consistent, fade-free performance
• Bilstein gas-pressure technology for dependable control and comfort
• German TÜV approval for peace of mind

Fitment

• BMW Z4 E85 Roadster 2002 to 2009
  • 2.0i, 2.2i, 2.5i, 2.5si, 3.0i, 3.0si
• BMW Z4 E86 Coupe 2006 to 2009
  • 3.0si, Z4 M

Part number and warranty

Part number: 48-104739

Warranty: 2-year Bilstein warranty

Professional fitting and setup

For the best results and a perfect geometry setup, book installation with MJ Modifications in Warwickshire. We offer fitting, ride height setting and alignment tailored to your driving style. Request a quote at info@mjmodifications.co.uk.

Why this upgrade

If you want a BMW Z4 handling upgrade that balances everyday comfort with serious performance, this Bilstein B16 PSS9 adjustable suspension kit delivers. It is ideal for fast road use, weekend blasts and occasional track sessions, giving your E85 or E86 the composure and confidence it deserves.

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Manufactured by

Bilstein