KW DDC ECU Adjustable Coilovers Suspension Kit for BMW 1 Series M135i/M140i F20 F21 (RWD/2WD, 2011-on) - Adaptive Damping, Height Adjustable, App/Wi-Fi Control - Non-EDC Cars (1K2, 1K4) - Lowering Kit, Fast Road & Track

KW DDC ECU Suspension Kit for BMW 1 Series M135i and M140i F20 F21 2WD - non-EDC cars

Give your BMW hatchback the stance, grip and confidence it deserves with the KW DDC ECU electronically adjustable suspension. This premium coilover system brings app-enabled damping control, precise ride-height adjustment and exceptional comfort for daily use with the handling precision you want for fast-road and track days. Perfect for BMW M135i and M140i F20 and F21 rear-wheel-drive models without factory adaptive dampers, including model codes 1K2 and 1K4.

What makes it a game changer

• Electronically adjustable shock absorbers with three cabin-selectable modes via the included KW DDC button - Comfort, Sport and Sport Plus.
• Optional Wi-Fi module with free iOS app for live damping tweaks from your phone - tune front and rear independently without tools.
• German-engineered damper valving tailored to the 1 Series chassis for outstanding body control, traction and stability.
• Ride-height adjustment front and rear with corrosion-resistant components and dirt-repellent threads for easy, consistent setup.
• Fast-road compliant with track-ready precision - superb on UK B-roads and long motorway runs.

Lowering range and axle loads

• Front lowering: 25 to 50 mm
• Rear lowering: 30 to 55 mm
• Permissible axle loads in kg: Front 921 to 1090, Rear up to 1230

Vehicle compatibility

BMW 1 Series M135i and M140i, F20 and F21, rear-wheel drive, without factory electronic damping, from 09/2011 onwards. Model codes 1K2 and 1K4.

Note: This is the DDC ECU version for non-EDC cars. If your vehicle has factory adaptive dampers, choose the KW DDC Plug and Play kit for EDC-equipped models.

In the box

• Front and rear KW DDC ECU coilover struts and matched springs for F20 and F21 M135i and M140i
• KW DDC cabin switch and control unit for Comfort, Sport and Sport Plus modes
• Vehicle-specific wiring loom and fitting hardware
• Installation instructions from KW
• Optional WLAN module for app control and custom damping maps

Proven on UK roads

We have installed this system on multiple customer cars and the feedback has been outstanding. Sharper turn-in, far better mid-corner composure and traction, plus a genuinely compliant ride for daily driving in Comfort. Switch to Sport or Sport Plus for a tighter, more connected feel that inspires confidence on spirited drives.

Quality and warranty

• Manufactured in Germany and tested far beyond OEM standards
• Multi-year warranty across thousands of applications - up to 5-year warranty when installed by an approved specialist, subject to KW terms

Professional fitting and alignment

For the best results, have this kit installed and aligned by experts. MJ Modifications offers supply, fitting and setup in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search terms customers use

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