
KW Coilover suspension V3 inox - BMW 1 Series F20 M140i
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KW V3 Coilovers – BMW 1 Series F20 M140i
The KW V3 Coilovers for the BMW F20 M140i are a premium suspension upgrade for drivers who want adjustable ride height combined with independently adjustable compression and rebound damping.
Sitting above the KW V2 in the road-focused range, the V3 offers significantly greater setup flexibility while retaining the refinement and everyday usability expected from a high-quality road suspension system.
For M140i owners looking to improve chassis control, steering response and overall balance without moving to a more track-focused Clubsport setup, the KW V3 is one of the most complete options available.
Why choose KW V3 for your BMW M140i?
The F20 M140i is a strong platform for suspension upgrades, particularly when the car is running increased power, performance tyres or more aggressive geometry.
The KW V3 allows the chassis to be tuned in much greater detail than a fixed-damping or rebound-only coilover system.
Independent compression and rebound adjustment means the suspension can be tailored around road conditions, tyre choice, driving style and intended use.
This makes the V3 particularly well suited to drivers who want a premium road and fast-road setup with enough adjustment to support occasional track use.
Key Features
- KW V3 coilover suspension
- BMW F20 M140i application
- Adjustable ride height
- Independent compression and rebound adjustment
- Vehicle-specific spring and damper tuning
- KW INOX-LINE stainless-steel construction
- Improved body control
- Greater chassis adjustability than KW V1 or V2
- Road, fast-road and occasional track capability
- Corrosion-resistant construction
- Premium KW suspension system
Independent Compression & Rebound Adjustment
The defining feature of the KW V3 is its independently adjustable compression and rebound damping.
Rebound controls how quickly the suspension extends after being compressed.
Increasing rebound damping can provide stronger body control and a more settled feel during cornering, braking and directional changes, while reducing rebound can allow the suspension to react more freely over rougher surfaces.
Compression damping influences how the suspension reacts as load is applied during braking, acceleration, cornering and changes in road surface.
Because compression and rebound can be adjusted independently, the V3 gives the driver much greater control over the overall balance of the car.
Adjustable Ride Height
The KW V3 allows the ride height of the BMW F20 M140i to be adjusted within the approved application-specific range.
This makes it possible to:
- Reduce arch gap
- Achieve a more purposeful stance
- Fine-tune front-to-rear ride height
- Adjust the setup around wheel and tyre fitment
- Lower the vehicle while retaining a complete matched suspension system
Ride height should still be selected with suspension travel, tyre clearance and geometry in mind.
For performance-focused builds, usable suspension travel and correct geometry are more important than simply lowering the car as far as possible.
KW INOX-LINE Stainless-Steel Construction
The KW V3 uses KW’s INOX-LINE stainless-steel strut construction.
This provides strong resistance to corrosion and helps keep the threaded height-adjustment areas serviceable over the long term when correctly maintained.
For cars driven throughout the year in UK conditions, this is a valuable advantage over lower-cost galvanised steel systems.
BMW F20 M140i Suspension Upgrade
The M140i combines strong engine performance with a rear-wheel-drive chassis that responds well to improved suspension control.
The KW V3 can work particularly well alongside upgrades such as:
- Performance or semi-slick tyres
- Uprated suspension bushes
- Adjustable suspension arms
- Rear subframe upgrades
- Chassis bracing
- Limited-slip differential
- Upgraded braking systems
- Performance alignment settings
As tyre grip and engine performance increase, the additional control offered by the V3 becomes increasingly useful.
KW V2 vs KW V3
The KW V2 and V3 both provide adjustable ride height and use KW’s premium INOX-LINE stainless-steel construction.
The main difference is damping adjustment.
The V2 provides adjustable rebound damping while compression remains fixed.
The V3 adds independent compression adjustment, giving the driver greater control over how the car reacts under braking, acceleration and cornering load.
For mainly road use where simplicity is important, the V2 is an excellent option.
For drivers who want more tuning potential and a more advanced suspension setup, the V3 is the better choice.
KW V3 vs KW V3 Clubsport
The standard KW V3 is primarily designed for premium road and fast-road use, with enough adjustability to support occasional track driving.
The V3 Clubsport takes a more track-focused approach, with a more performance-orientated spring and damper setup and, where specified, adjustable top mounts for additional geometry adjustment.
For a predominantly road-driven M140i, the standard V3 is generally the more suitable option.
For regular track use and high-grip tyre setups, the V3 Clubsport provides greater scope for chassis optimisation.
Road, Fast-Road & Occasional Track Use
The KW V3 is particularly well suited to:
- Daily-driven BMW M140i models
- Fast-road builds
- Owners wanting independent damping adjustment
- Cars running performance tyres
- Higher-powered M140i builds
- Occasional track-day use
For dedicated or frequent circuit use, a KW Clubsport system may be more appropriate.
Electronic Damper Compatibility
Some BMW F20 M140i models are equipped with factory adaptive electronic dampers.
Where conventional KW V3 coilovers replace the original electronically controlled dampers, the factory adaptive damping function will no longer operate.
Depending on the exact vehicle and kit specification, a separate electronic damping cancellation solution may be required.
Please confirm the correct application before ordering if your M140i is equipped with adaptive suspension.
Professional Installation & Alignment
Professional installation is recommended for the KW V3.
Once fitted, the vehicle should receive a full four-wheel alignment so that toe, camber and other geometry settings can be checked following the change in ride height.
For more performance-focused builds, corner weighting and a more aggressive geometry setup may also be worthwhile.
Maintenance
Although KW’s INOX-LINE construction provides excellent corrosion resistance, the suspension should still be maintained regularly.
Threaded adjustment areas, spring platforms and damping adjusters should be kept clean, particularly on cars exposed to winter road salt and contamination.
Regular inspection helps ensure the suspension remains adjustable and performs consistently over time.
BMW F20 M140i Compatibility
This KW V3 coilover kit is intended for applicable BMW F20 M140i models.
Exact fitment can vary depending on vehicle specification, axle loads and suspension configuration.
Please confirm your exact vehicle details before ordering.
If you're unsure which KW V3 kit your M140i requires, contact us and we'll help identify the correct application.
What's Included?
The KW V3 is supplied as a complete vehicle-specific coilover suspension system for the applicable BMW F20 M140i, including:
- KW V3 dampers
- Vehicle-specific springs
- Height-adjustment components
- Compression damping adjustment
- Rebound damping adjustment
- Relevant installation components
Exact contents can vary depending on the selected application.
Explore More BMW M140i Parts
Looking to improve your M140i further? Explore our range of BMW F20 M140i parts and upgrades, including suspension, handling, braking and performance products.
BMW F20 M140i Parts – Shop upgrades specifically for the BMW F20 M140i.
KW Suspension – Browse the complete range of KW suspension products.
Coilovers – Explore coilover suspension from KW and other leading manufacturers.

