KW V1 INOX-LINE coilover kit for the BMW 3 Series / 4 Series xDrive (F3x). The V1 is KW’s entry street-performance coilover: ride height is adjustable across an approved lowering range, while the damping is preset — vehicle-specific spring rates and damper tuning are developed by KW on the Nürburgring Nordschleife and a 7-post rig, so there’s no guesswork to dial in. Struts use KW’s INOX-LINE stainless steel for permanent corrosion resistance and an easy, dirt-resistant height adjustment. Each kit is hand-built and dyno-tested in Fichtenberg, Germany. For AWD (xDrive) models with electronic suspension; includes the EDC cancellation.
| Type | Coilover kit (KW V1 "INOX-LINE") |
| Vehicle | BMW 3 Series / 4 Series xDrive (F3x) |
| Adjustment | Height adjustable; preset (non-adjustable) damping |
| Construction | INOX-LINE stainless steel monotube |
| Origin | Made in Germany |
| Warranty | Limited lifetime, unlimited mileage |
Documents: Installation Instructions (PDF) | Installation Instructions (PDF) | Installation Instructions (PDF) | Installation Instructions (PDF) | Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2015 | BMW | 335i xDrive | Base |
| 2016-2018 | BMW | 340i xDrive | Base |
| 2014-2016 | BMW | 435i xDrive | Base |
| 2017-2020 | BMW | 440i xDrive | Base |
