The ST XA coilover kit delivers ride-height and rebound-damping adjustment for the Audi A4 and S4 (B5). Sixteen distinct clicks of adjustable rebound damping let you tune driving dynamics from comfortable to sporty, while the friction-optimized polyamide composite spring perch with a stainless-steel insert makes height adjustment smooth and corrosion-free. Galvanized zinc-coated steel struts and a multi-layered sealing package with dust protection provide long-lasting corrosion resistance. Built by hand by KW in Fichtenberg, Germany, and dyno-tested before boxing.
Specifications
| Type | Coilover kit (ST XA) |
| Adjustability | Ride height + rebound damping |
| Damping | 16-click manual rebound adjustment |
| Construction | Galvanized zinc-coated steel |
| Part Number | 18210032 |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998 | Audi | A4 | Avant |
| 1996-2001 | Audi | A4 | Base |
| 1998-2001 | Audi | A4 Quattro | Avant |
| 1996-2001 | Audi | A4 Quattro | Base |
| 2001 | Audi | S4 | Avant |
| 2000-2001 | Audi | S4 | Base |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
