KW BMW F12 F13 Variant 3 Coilover Kit (640d, 640i & 650i)

Transform your BMW 6 Series handling and stance

Unlock razor-sharp control, real-world ride quality and a perfectly level stance on your BMW 6 Series with the KW Suspension V3 2-way height adjustable coilovers. Designed for the F12 Convertible and F13 Coupe in 640d, 640i and 650i form, this premium spring and damper package delivers fast-road precision with track-day capability. Expect tighter body control, improved grip, confident turn-in and the ability to tailor the setup to your driving style.

We’ve installed these units for many customers and on our own builds. Feedback is consistently the same: incredible confidence on B-roads, superb composure at speed and a ride that stays refined for everyday use.

Why this performance suspension upgrade

• Independent adjustability: fine-tune rebound and compression separately for the perfect balance of comfort and control.
• 16-stage rebound control: dial in support and stability across undulations and high-speed corners.
• 12-stage low-speed compression: manage pitch, dive and roll without needing stiffer springs.
• Height adjustable: achieve your ideal drop and stance while keeping suspension travel optimised.
• Inox-Line stainless construction: corrosion resistant coilover bodies for long-term durability on UK roads.
• Twin-tube damper tech: broad tuning window, great compliance and dependable performance.
• Composite spring perches and robust trapezoidal threads for smooth, long-life height adjustment.
• Street friendly, track ready: perfect for spirited driving, weekend blasts and club track days.

Fitment and compatibility

BMW 6 Series

• F12 Cabriolet 12/2010 to 06/2018 - 640d, 640i, 650i
• F13 Coupe 07/2011 to 10/2017 - 640d, 640i, 650i

What’s included

• Front and rear height adjustable coilover struts and matched springs
• 2-way damping adjusters: rebound top adjuster and lower compression adjuster
• All required hardware and detailed instructions
• Parts approval (§19.3)

Part numbers

• 3522000C
• 35220100

Real-world benefits

• Sharper steering response and better mid-corner stability
• Reduced squat and dive under acceleration and braking
• Balanced, predictable handling with improved traction
• Lower ride height for an aggressive, OEM+ look

Documents and manuals

• Parts approval document
• Installation guide - suspension kit
• Installation guide - cancellation kit
• Adjustment manual

Notes and recommendations

• Vehicles equipped with factory adaptive dampers may require a KW cancellation kit to avoid dashboard warnings. See documents above.
• Professional wheel alignment is recommended after installation to maximise tyre life and performance.
• Designed for road use with the tuning range to support occasional circuit use.

Installation service

For fitting, geometry setup and a fast-road or track-day alignment, book with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Warranty

• Street coilovers including V3 - Limited Lifetime Warranty
• Bushings, bump stops and ball joints - 1 year
• Clubsport and race applications - no warranty

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