KW DDC - ECU coilovers inox - BMW 1 Series E82
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KW DDC ECU Coilovers – BMW 1 Series E82 Coupe
Upgrade your BMW 1 Series E82 Coupe with KW DDC ECU Coilovers, combining electronically adjustable damping with height-adjustable INOX-LINE stainless-steel suspension.
The KW DDC ECU system gives you the ability to change the damping character electronically from inside the car, making it ideal for drivers who want both comfort and performance without manually adjusting each damper.
KW part number:
39020002
Electronic Damping Adjustment
The DDC ECU system allows the damping setup to be changed electronically using the supplied KW control system.
KW offers multiple selectable damping modes, including:
- Comfort
- Sport
- Sport+
This allows the suspension to be adapted to different driving situations at the touch of a button.
Adjustable Ride Height
For the BMW E82 Coupe application, KW lists approximately:
- Front lowering: 30–55mm
- Rear lowering: 25–50mm
The front axle uses threaded coilover struts, while the rear uses separate springs with height adjustment and matching dampers.
This gives you control over:
- Vehicle stance
- Wheel and tyre fitment
- Arch clearance
- Centre of gravity
- Overall chassis setup
KW INOX-LINE Stainless Steel
The DDC ECU kit uses KW’s corrosion-resistant INOX-LINE stainless-steel construction.
Key features include:
- Stainless-steel front struts
- Adjustable ride height
- Electronically controlled damping
- Vehicle-specific spring and damper calibration
- Dedicated control unit
- TÜV-approved application
The stainless-steel construction is designed to provide strong corrosion resistance and maintain the functionality of the threaded height adjustment over long-term road use.
BMW E82 Compatibility
KW part number 39020002 is specifically designed for BMW E82 Coupe applications.
Current specialist fitment data explicitly lists:
- BMW E82 128i
- BMW E82 135i with N54 engine
- BMW E82 135i with N55 engine
European application data also lists this same part number for additional E82 engine variants, including the 120d, so exact compatibility should be confirmed using the vehicle model, engine and axle loads before ordering.
Maximum Axle Loads
Maximum permissible axle loads are:
- Front axle: 945kg
- Rear axle: 1070kg
The vehicle must remain within these limits.
We recommend checking the axle-load figures on the vehicle identification plate before ordering.
Important 1M Compatibility Note
This kit should not be assumed to fit the BMW E82 1M Coupe.
KW uses a separate DDC ECU part number for the 1M:
- 39020002 – BMW E82 Coupe applications
- 39020004 – BMW E82 1M Coupe
If you own a 1M, the dedicated 1M application should be used instead.
DDC ECU System
The kit includes a dedicated electronic control system rather than relying on factory adaptive damping.
Published kit contents include:
- Front height-adjustable coilover struts
- Rear springs with height adjustment
- Rear dampers
- Electronic control unit
- Vehicle-specific wiring
- KW DDC control button
Optional App Control
KW also offers an optional WLAN module for compatible DDC ECU systems.
When fitted, this can allow the suspension settings to be adjusted through the KW DDC app rather than relying only on the physical cabin control.
If app control is specifically required, please contact The Rosso Corsa Collective before ordering so the necessary hardware can be confirmed.
Designed for Road & Performance Use
The KW DDC ECU system is particularly well suited to:
- Daily-driven performance cars
- Fast-road builds
- Long-distance road use
- Drivers wanting electronic damping control
- Cars that need both comfort and performance settings
- Owners wanting premium suspension without manual damper adjustment
Important Fitment Notes
Before ordering, confirm:
- Exact E82 model
- Engine variant
- Production year
- Front axle load
- Rear axle load
- Factory suspension specification
- Wheel and tyre setup
KW also notes that wheel spacers may be required with some factory wheel and tyre combinations to provide sufficient clearance between the wheel and suspension components.
If you're unsure whether KW 39020002 is correct for your BMW, contact The Rosso Corsa Collective with your registration or vehicle details and we can help confirm fitment.
Product Image & Configuration Note
Product images are generic and are intended for illustration purposes only.
The exact components supplied can vary depending on vehicle application, including:
- Spring configuration
- Damper layout
- Electronic control hardware
- Wiring
- Rear height-adjustment components
- Mounting hardware
If you have specific requirements or want confirmation of the exact supplied configuration, please contact The Rosso Corsa Collective before ordering.
Professional Installation Recommended
Professional installation is strongly recommended due to both the mechanical suspension installation and electronic control system.
Following installation, the vehicle should receive a full wheel alignment and geometry setup to ensure correct handling, tyre wear and suspension performance.
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