KW DDC ECU Coilover Suspension Kit for BMW 1 Series M135i/M140i F20 F21 xDrive AWD/4WD (2012-on) – Height Adjustable, Adaptive Electronic Damping, App/WiFi Control – Non-EDC Cars – Lowering Kit Shocks & Springs – 1K2/1K4

Adaptive, app-tunable coilover suspension for BMW 1 Series M135i and M140i F20 F21 xDrive AWD

Unlock sharper handling, a lower centre of gravity and everyday comfort with the KW DDC ECU coilover suspension system for BMW 1 Series M135i and M140i xDrive. This premium German-engineered kit blends height adjustability with intelligent electronic damping control, so you can fine tune ride quality and body control from the cabin or via the optional smartphone app. If you want a neater stance, more grip and confidence on B-roads without sacrificing refinement, this is the upgrade.

We have fitted these kits for customers and the feedback has been superb. Quicker turn-in, flatter cornering and real composure on poor tarmac, while Comfort mode keeps daily driving smooth. It is an ideal fast-road set-up that can handle occasional track work.

Vehicle compatibility

• BMW 1 Series M135i and M140i F20 and F21 hatchback
• xDrive four wheel drive models
• Cars not equipped with OE electronic damping
• Build dates from 09/2012 onward
• Includes chassis references 1K2 and 1K4

Lowering range

• Front: 30 to 55 mm
• Rear: 30 to 55 mm

Approved axle loads

• Front: 1001 to 1020 kg
• Rear: up to 1120 kg

What makes this kit stand out

• Electronic damping control with three factory-calibrated modes: Comfort, Sport and Sport Plus
• Optional wireless control via iPhone, iPad or iPod touch when paired with the W-LAN module
• Create and store your own damping presets in the KW app for road, motorway or track day
• Height adjustable for the perfect stance and balance within TÜV tested limits
• Dirt-resistant trapezoid thread and composite spring perch for easy long-term adjustment
• Engineered and tested in Germany to standards beyond typical OEM requirements
• Multi-year warranty, extendable to 5 years when fitted by an approved KW specialist

What is included

• KW DDC ECU coilover suspension kit
• In-cabin DDC selector button for Comfort, Sport and Sport Plus
• Vehicle-specific fitting instructions
• Optional W-LAN module available for app-based control

Professional fitting and setup

Want it installed and aligned correctly first time For supply, fitting and geometry, choose MJ Modifications in Warwickshire. We can set the ride height and damping to suit your use and wheel and tyre package. Request a quote at info@mjmodifications.co.uk.

Why enthusiasts choose this system

Switch between compliant daily comfort and focused road performance in seconds. Dial in the ride height you want for a purposeful look and improved stability. Enjoy predictable body control, reduced roll and a more connected steering feel without harshness. It is the intelligent suspension solution for an F20 or F21 1 Series M Performance car running AWD.

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