Multi-link suspension
TechnologieAverage price
1000€ - 3000€
Multi-link suspension, also known as a multi-link rear axle, is a sophisticated type of independent suspension, primarily used on the rear axle of modern vehicles. Unlike simpler systems such as the torsion beam, it uses multiple arms (typically between three and five) to connect the wheel carrier to the vehicle's chassis. Each arm has a specific function and controls a particular aspect of wheel movement. This complex configuration allows engineers to adjust suspension geometry (camber, toe, caster) with extremely high precision during compression and rebound phases. By decoupling lateral and longitudinal forces, the multi-link suspension provides optimal control of the tire's contact with the road, regardless of conditions. This technology is particularly favored in high-end, sporty, or comfort-focused vehicles, as it represents the best compromise between driving dynamics, safety, and ride comfort. However, its complexity and manufacturing cost make it less common on entry-level city cars.
Benefits
- ✓Exceptional handling and cornering stability
- ✓Superior ride comfort thanks to better absorption of road irregularities
- ✓Optimal tire-to-road contact for improved traction and braking
- ✓Precise adjustments allowing a perfect balance between comfort and dynamics
Learn more
What is a multi-link suspension?
Multi-link suspension is one of the most advanced and high-performing chassis architectures in the automotive industry. It is a type of independent suspension, meaning that the movement of a wheel on one side of the vehicle does not directly affect the wheel on the other side. Its distinguishing feature is the use of a set of three to five arms, or "links," to connect the wheel hub to the body. This ingenious design allows for extremely precise kinematic control, giving engineers the ability to decouple and optimize the various wheel movements (vertical, longitudinal, and transverse).
In comparison, simpler systems such as the torsion beam (or semi-rigid axle), common in smaller cars for cost and packaging reasons, link the two wheels together. On rough roads or during hard cornering, the performance of a torsion beam is limited. Multi-link suspension, on the other hand, ensures that each wheel remains in an almost ideal position relative to the road, thereby maximizing grip and stability.
Key advantages of multi-link technology
The adoption of multi-link suspension by manufacturers is no coincidence, especially in higher segments. It delivers tangible benefits for both the driver and passengers:
- Dynamic handling and safety: By finely controlling camber (the tilt of the wheel) and toe (the orientation of the wheel) during cornering and weight transfers, this system ensures a maximum contact patch between the tire and the road. The result is superior grip, greater stability at high speeds, and more predictable vehicle reactions.
- First-class comfort: The ability to decouple forces allows for the effective filtering of vibrations and road imperfections. The arms can be mounted to the chassis via bushings (silent blocks) specifically calibrated to absorb impacts without compromising steering precision, delivering excellent ride comfort.
- Versatility: This technology serves as the ideal foundation for integrating other advanced systems such as adaptive or air suspension, or even a rear-wheel steering system. It makes it possible to offer distinct driving modes (Comfort, Sport, etc.) with very pronounced differences in behavior.
On what types of vehicles is multi-link suspension found?
Historically reserved for luxury sedans and sports cars, multi-link suspension has become more widespread. Today, it is found across a wide range of vehicles:
- Premium vehicles: It is the standard for brands like BMW, Mercedes-Benz, and Audi across almost their entire lineups.
- Sport models: Essential for guaranteeing road handling that matches the engine's performance (e.g., Renault Mégane R.S., Peugeot 508 PSE).
- C/D-segment SUVs and sedans: A growing number of mainstream manufacturers are adopting it on the high-end versions of their flagship models (e.g., Volkswagen Golf, Peugeot 308, Ford Focus) to stand out through superior ride quality.
Disadvantages and cost
Despite its undeniable qualities, multi-link suspension has a few drawbacks. Its main weakness is its complexity, which leads to higher manufacturing costs and greater weight compared to a torsion beam axle. Furthermore, its architecture takes up more space, which can slightly encroach upon trunk volume or the space available for the fuel tank. In terms of maintenance, replacing the multiple arms and bushings can prove more costly in the event of wear. However, for anyone who prioritizes driving pleasure, safety, and comfort, the benefits far outweigh these constraints.
Finitions équipées
8 finition(s) proposent cet équipement
Alfa Romeo Alfa Romeo 4C
4C Standard / Base (1st generation) (2014-2019)
Ford Ford GT
Ford GT Standard (2nd generation) (2017-2022)
Nissan Nissan Navara
Tekna+ (NP300 D23 4th generation) (2017-2021)
Opel Opel Rocks-e
Rocks Electric (1st generation - phase 2) (2023-2026)
Porsche Porsche 911
GT3 / GT3 Touring / GT3 RS (992.1) (2021-2024)
Renault Renault Master E-Tech
E-Tech Essential Chassis Cab (2nd generation) (2024-2026)
Renault Renault Twizy
Life 80 (1st generation) (2012-2023)
Škoda Škoda Enyaq
Enyaq Coupé Lounge (1st generation) (2022-2024)
Associated equipment
ESP
ESP, or Electronic Stability Program, is an essential active safety system in modern vehicles, also known as Electronic Stability Control. Its primary role is to keep the vehicle on the trajectory intended by the driver, by preventing loss of grip and skidding. To do this, the ESP uses a series of sensors (wheel speed, steering wheel angle, lateral acceleration, yaw) that continuously analyze the consistency between the direction desired by the driver and the actual behavior of the car. If a discrepancy is detected, signaling the onset of understeer (the front wheels skid) or oversteer (the rear wheels skid), the system intervenes in a fraction of a second. It independently brakes one or more wheels and can also reduce engine power to bring the vehicle back onto the correct trajectory. Mandatory on all new vehicles sold in Europe since 2014, ESP is an electronic guardian angel that significantly increases safety during emergency avoidance maneuvers, in tight corners, or on slippery surfaces (rain, snow, ice). It works in synergy with other aids such as ABS and ASR (traction control).
Sport suspension
A sport suspension is an optimized setup of a vehicle's chassis and suspension system, designed to prioritize performance and driving dynamics, often at the partial expense of comfort. Unlike a standard suspension focused on the maximum absorption of road imperfections, the sport version uses components with more radical characteristics. The springs are shorter and stiffer, which has the dual effect of lowering the vehicle's center of gravity and significantly limiting body movement (body roll in corners, brake dive, and acceleration squat). The dampers, whether gas or hydraulic, have a much firmer calibration, controlling spring oscillations with greater authority to maintain optimal tire-to-road contact under all circumstances. The package is frequently completed by larger-diameter anti-roll bars and bushings made of harder materials (such as polyurethane) to eliminate deflection and provide a more direct and sharp response. The result is increased agility, better high-speed stability, and more precise feedback for the driver, transforming the vehicle's handling for a more engaging and sporty driving experience. It is equipment of choice for automotive enthusiasts and track day fans.
Adaptive suspension
Adaptive suspension, also known as active damping, is an advanced chassis technology that adjusts damper firmness in real time. Using a network of sensors that continuously analyze the road surface (road quality), driving style (acceleration, braking), and vehicle movements (roll, pitch), an electronic control unit (ECU) modulates damper response within milliseconds. This modulation is achieved via electromagnetic valves or a magnetorheological fluid whose viscosity changes under the effect of a magnetic field. Unlike a conventional passive suspension, this intelligent system offers exceptional versatility. It can provide a soft damping setting for maximum comfort on the highway or rough roads, and then instantly firm up to ensure precise and reassuring road-holding during dynamic driving or emergency maneuvers. Having become a benchmark in the premium and sports segments, it is offered under various commercial names such as DCC (Volkswagen), PASM (Porsche), or Adaptive M Suspension (BMW), embodying the ultimate compromise between comfort and performance.
Air suspension
Air suspension is an advanced automotive suspension system that replaces traditional mechanical springs (coil, leaf) with air cushions, also known as air springs. Made of reinforced rubber, these are inflated or deflated in real time by an onboard air compressor. The system is controlled by an electronic control unit (ECU) that continuously analyzes data from ride height sensors located on each wheel. This maintains a constant ride height regardless of vehicle load (passengers, luggage, trailer), thereby ensuring stable and safe handling. Beyond its ability to provide exceptional damping comfort, air suspension offers great versatility. The driver can generally adjust the ride height: raising it to clear obstacles or parking ramps, or lowering it at high speeds to improve aerodynamics, stability, and reduce fuel consumption. Often paired with adaptive damping, it allows the driver to choose between different driving modes, ranging from absolute comfort to sporty dynamics. Once reserved for luxury vehicles, this technology has become more mainstream and now equips many high-end SUVs and sedans.
Rear-wheel steering
Rear-wheel steering, also known as a four-wheel steering system, is an advanced chassis technology that allows a vehicle's rear wheels to pivot by a few degrees. Unlike a traditional fixed rear axle, this system uses electromechanical actuators to adjust the rear wheel angle based on vehicle speed and front wheel steering angle. At low speeds, typically below 60-80 km/h, the rear wheels turn in the opposite direction to the front wheels. This counter-steering virtually reduces the vehicle's wheelbase, thereby significantly decreasing the turning radius and improving agility for city maneuvers and parking. At high speeds, the rear wheels turn in the same direction as the front wheels. This parallel steering virtually increases the wheelbase, resulting in enhanced stability during highway lane changes and better handling in fast corners. Managed by a central ECU, this system continuously optimizes vehicle behavior to offer an ideal compromise between maneuverability and safety.