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KW

KW Variant 3 (V3) Inox-Line Coilover Kit for BMW 1/2/3/4 Series F-Series (F20 F21 F22 F23 F30 F32) | Height Adjustable, Rebound & Compression Damping | Fits M135i M140i M235i M240i 335i 340i 435i 440i | Part No 3522000F

KW Variant 3 (V3) Inox-Line Coilover Kit for BMW 1/2/3/4 Series F-Series (F20 F21 F22 F23 F30 F32) | Height Adjustable, Rebound & Compression Damping | Fits M135i M140i M235i M240i 335i 340i 435i 440i | Part No 3522000F

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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Ultimate F-series BMW suspension upgrade by KW – Part Number 3522000F

Give your 1 Series, 2 Series, 3 Series or 4 Series F-chassis the handling it deserves with the KW V3 Inox-Line performance suspension package. This height-adjustable, stainless steel coilover system delivers precise chassis control on UK roads and track days thanks to independently adjustable bump and rebound, premium materials and KW’s motorsport-derived damper technology. Expect tighter body control, faster turn-in, improved traction and a ride you can tailor from daily comfort to B-road weapon.

Why enthusiasts choose this KW V3 setup

  • Independent damping control: separate rebound and compression clickers let you fine tune comfort, support and grip without changing springs.
  • Inox stainless construction: corrosion-resistant bodies and threads for long life in British weather, road salt and year-round use.
  • Ride height adjustability: set your ideal drop and stance while optimising centre of gravity and tyre contact.
  • Twin-tube damper design with precision valve control for consistent performance over rough B-roads and on circuit.
  • Seven-post rig developed and proven on fast road and Nordschleife testing for durability and control.
  • Track-bred know-how distilled into a road-friendly package that still excels on track days.

What you will feel on the road

Sharper steering, less roll, more confidence over crests and through compressions, plus a calmer chassis at speed. Add compression clicks to reduce pitch and roll, add rebound to stabilise weight transfer and settle the car over undulations. Perfect for cars running wider wheels and tyres or drivers who want genuine handling gains without sacrificing refinement.

Key highlights

  • Independent rebound and compression adjusters with distinct, repeatable clicks for easy setup.
  • Stainless Inox-Line threaded bodies and adjustable spring perches for reliable height changes.
  • Wide, verified lowering range with continuous adjustability for a tailored stance.
  • High quality components designed for longevity and consistent damping characteristics.
  • Clear documentation to guide installation and baseline tuning.

Vehicle applications

BMW F20 F21: M135i, M140i

BMW F22 F23: 218d, 218i, 220d, 225i, 228i, M235i, M240i

BMW F30: 320d, 320i, 325d, 328i, 330d, 330i, 335i, 340i

BMW F32: 420d, 420i, 425d, 428i, 430d, 430i, 435i, 440i

Important: for vehicles without Electronic Damper Control and without xDrive. If your car has EDC or xDrive, contact us for the correct KW solution.

Installation and setup

For the best results, have the kit professionally installed and follow up with a full four-wheel alignment. MJ Modifications in Warwickshire offers expert fitting and a sensible baseline for bump and rebound tailored to your use. Request a fitting quote at info@mjmodifications.co.uk.

Part number

KW 3522000F

Manufacturer and warranty

Produced by KW. Warranty is 2 years as standard, extendable to up to 5 years when installed by an approved KW specialist.

Proven by us and our customers

We have fitted multiple KW V3 kits to these BMW platforms and feedback is consistently excellent. Customers report transformative grip, better composure on British B-roads and a refined ride that feels premium. It is a true do-it-all suspension for street and track.

Search terms to help you find the right kit

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