KW V3 Coilovers - BMW F20 M135i/M140i

Increase the cornering grip, body control and ride refinement of your BMW F20 M135i/M140i with a set of KW V3 coilovers.

The springs and dampers fitted to most production cars are not suitable for high-performance driving. These suspension components are mass produced and chosen by manufacturers for their adequate performance and cheap price. For most performance BMWs this means springs that are far too soft for performance driving, and dampers that are too stiff for overall comfort.

This is where KW V3 coilovers come in. The springs, dampers and internal valving on KW V3 coilovers is far more sophisticated than the standard BMW springs and dampers. As a result, KW V3s will generate far more grip not only in the corners, but whilst accelerating and braking too.

KW V3s also feature full ride-height adjustability, which allows your M135i/M140i to be corner weighted for even greater cornering performance.

The key features of KW V3 Coilovers for the BMW F20 M135i/M140i are:

• 2-Way independently adjustable (12 clicks compression, 16 clicks rebound)

• Fully height adjustable

• Stainless steel "inox-line" construction for improved corrosion resistance

• Trapezoidal height adjustment threads to ensure consistent performance over the product's lifespan

• Patented Twin Valve Compression and Twin Valve Rebound technology for superior performance

• High quality racing springs

• Suitable for daily driving as well as performance driving

• Tested at the Nürburgring in Germany

PLEASE NOTE - vehicles fitted with BMW Electronic Damper Control (EDC) will require a delete kit to prevent error codes from occurring.

More information

Every single KW damper uses KW's twin-tube damper technology. Within each KW damper there are two tubes - the inner tube, which contains the piston and the majority of the damping fluid, and the outer tube which surrounds the inner tube and works as a reservoir for the damping fluid and helps to maintain consistent damper performance.

When encountering a bump or undulation the damper enters the compression phase. As the bump is driven over, the spring on the coilover is compressed. Kinetic energy is generated and accumulated in the spring.

During the compression stroke, the piston rod displaces the oil in the inner tube, which passes through the compression valve located at the bottom of the inner tube. The flow resistance at the compression valve generates the compression damping force. This flow resistance causes the speed of the compression stroke to slow down.

During this process, some of the oil beneath the compressing piston flows upwards through the check valve at low resistance, filling the inner tube behind the piston with oil, ensuring consistent performance.

During the rebound stroke, kinetic energy accumulated in the spring is transformed into heat energy internally as the damper rebounds. The speed at which this happens is controlled by the flow resistance of the rebound valve.

As the piston rebounds the oil above the piston in the inner tube flows through the holes in the rebound valve. The resistance offered by this valve controls the rebound velocity.

Whilst this is happening, oil stored in the outer tube flows back into the inner tube via the check valve.

The compression and rebound phases are complete and the high-quality KW damper helps keep the wheel in contact with the tarmac and under control at all times.

TVR-A explained

TVR-A stands for Twin Valve Rebound - Adjustable. The technology works at both at both high and low damper speeds. When a bump is encountered at low speed, such as during every day driving or commuting, the internal damper fluid flows at a low volume through an adjustable, conical low-speed bypass. This makes the damper far more supple during day to day use as the damper rebounds more slowly and less harshly than a standard damper.

TVC-A explained

TVC-A stands for Twin Valve Compression - Adjustable. This adjustment controls the cross-section of the low-speed damper valve to allow for more or less compression damping. When a large bump is encountered at high speed, both the needle valve and main valve openly completely to allow for efficient and consistent damper performance. The adjustable compression damping gives you superior vehicle support and control whilst also offering improved comfort versus OEM dampers.