ST Suspensions XA adjustable coilover kit for the 2009-2016 BMW Z4 (E89), offering both ride-height and 16-click rebound damping adjustment. Built by hand by KW in Fichtenberg, Germany, with galvanized zinc-coated steel struts, a friction-optimized polyamide composite spring perch with stainless-steel insert, and a dust-protection sealing package on a hardened chrome piston rod. Each kit is dyno-tested and ships with a damper setup manual; backed by a 5-year unlimited-mileage limited warranty.
| Type | Adjustable coilover kit (ST XA) |
| Adjustability | Ride height + damping |
| Damping | 16-click manual rebound adjustment |
| Construction | Galvanized zinc-coated steel struts; polyamide composite spring perch with stainless-steel insert |
| Part Number | 18220072 |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2011 | BMW | Z4 | sDrive30i |
| 2009-2016 | BMW | Z4 | sDrive35i |
| 2011-2016 | BMW | Z4 | sDrive35is |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
