KW Height Adjustable Spring (H.A.S.) kit for the 2018-2025 Audi A5/S5 (B9) with EDC. Unlike fixed lowering springs, the H.A.S. system lets you adjust ride height at each corner with millimeter precision even after installation, for a more dynamic stance and sharper steering response. Chrome-silicon steel springs are tuned to the factory adaptive dampers and wheel loads so all electronic suspension and driver-assist features stay fully operational, and vehicle-specific bump stops with a dust-protection system are included.
| Type | Height Adjustable Spring (H.A.S.) kit |
| Spring material | Chrome-silicon steel |
| Ride height | Continuously adjustable |
| Electronic suspension | Retained (EDC) |
| Part Number | 253100AU |
| Warranty | Limited lifetime, unlimited mileage |
Documents: Installation Instructions (PDF) | Installation Instructions 2 (PDF) | Installation Instructions 3 (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018-2024 | Audi | A5 Quattro | Premium |
| 2018-2024 | Audi | A5 Quattro | Premium Plus |
| 2018-2024 | Audi | A5 Quattro | Prestige |
| 2018-2025 | Audi | A5 Sportback | Premium |
| 2018-2025 | Audi | A5 Sportback | Premium Plus |
| 2018-2024 | Audi | A5 Sportback | Prestige |
| 2019-2024 | Audi | S5 | Premium |
| 2018-2024 | Audi | S5 | Premium Plus |
| 2018-2024 | Audi | S5 | Prestige |
| 2020-2025 | Audi | S5 Sportback | Premium |
| 2018-2025 | Audi | S5 Sportback | Premium Plus |
| 2018-2025 | Audi | S5 Sportback | Prestige |
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.
