KW V3 Variant 3 Coilovers Suspension Kit for BMW 4 Series F33 Cabriolet/Convertible xDrive AWD (428i 430i 435i 435d 440i) 2013-2020 – Height Adjustable, Rebound & Compression Adjustable, Inox-Line Stainless – Coilover Damper Set – 352200BF / 352200BG

Adjustable Suspension Upgrade for BMW F33 Cabriolet xDrive

Unlock sharper handling, improved ride quality and precise control on UK roads with this premium two-way adjustable suspension kit for the BMW 4 Series F33 Convertible all-wheel drive models. Built with Inox-Line stainless damper bodies for long-term corrosion resistance and consistent performance in British weather, this package delivers road comfort with genuine track-day capability thanks to completely separate rebound and compression adjustment.

We run this setup on our own cars and our customers love it. Feedback is the same every time: calmer body control on bumpy B-roads, cleaner turn-in, flatter cornering and the stance you want without sacrificing daily drivability. If you are moving from stock dampers or basic lowering springs, the difference is transformational.

Main advantages

• Independent damping control with 16 clicks of rebound and 12 clicks of compression for fine tuning to tyres, wheel size and driving style.
• Continuous ride height adjustment within the tested range to set the perfect drop and optimise geometry.
• Inox-Line stainless construction that resists road salt and grime for durability year after year.
• Twin-tube damper technology using KW valve hardware for repeatable, precise changes you can feel.
• Confidence on fast road and track days with better stability, traction and braking support.
• Ideal for cars with power upgrades, larger wheels and sticky tyres.
• German part approval §19.3 with documented adjustment range.

How the adjusters help

Rebound control calms vertical movement and sharpens steering feel. Compression adjustment supports the chassis under braking, improves mid-corner support and curbs roll without changing the springs. You get the freedom to dial in balance for motorway cruising, B-road blasts or circuit use.

Fitment compatibility

For BMW 4 Series F33 Cabriolet xDrive from 10/2013 onwards, including:

• 428i xDrive
• 430i xDrive
• 435i xDrive
• 435d xDrive
• 440i xDrive

Part numbers

• 352200BF
• 352200BG

Technical highlights

• Version: Variant 3 two-way adjustable
• Design: Twin-tube damper with separate rebound and compression circuits
• Material: Inox-Line stainless steel
• Adjustment: 16-click rebound, 12-click compression
• Lowering: Individually height adjustable within approved range
• Approval: German part approval §19.3

EDC note

Cars equipped with the factory electronic damping can use the KW EDC Cancellation Kit to prevent warning lights. See documents below for details.

Installation

For best results choose professional fitting and a proper fast-road alignment. We offer expert installation and setup in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Documents

• Parts approval
• Installation instructions - Suspension kit
• Installation instructions - Cancellation kit
• Adjustment manual

Warranty

• Street Coilovers - Variant 1, Variant 2, Variant 3, Street Comfort: Limited Lifetime Warranty
• Bushings, bump stops and ball joints: 1 Year
• Clubsport coilovers, 2-way Race coilovers, 3-way Race coilovers: No warranty

Search terms to help you find this product

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