2019 BMW 3 Series Gets More Horsepower, MagneRide-like Suspension
Adaptive M suspension with electronically-controlled dampers
As an alternative to the suspension variants with standard damper technology, customers can also specify Adaptive M suspension. This combines the characteristics of M Sport suspension with electronically controlled dampers. Able to deliver damping force to each wheel separately via continuously adjustable valves, it is both the sportiest and most comfortable suspension variant available for the new BMW 3 Series Sedan. The latest version of this damping system operates with new valves and an optimized control algorithm, which now also enables load-dependent control of the damping forces. In addition, switching between the different modes using the Driving Experience Control switch now results in a much more perceptible variation in the damping characteristics.
In COMFORT mode, the electronically controlled dampers provide well-balanced long distance comfort, whereas in SPORT mode they encourage a much more dynamic driving style. As well as modifying the damper configuration, each setting also influences the steering, accelerator response and the shift dynamics of the Steptronic transmission. ADAPTIVE mode is now also available. With this setting selected, the car automatically adjusts its responses to the driving style and, depending on the equipment specified, to the route profile. The control system responds to accelerator and steering inputs and the position of the selector lever to make the powertrain and suspension characteristics sportier or more comfort-oriented. The map data supplied by the optional Navigation system Professional is also used to prepare the car for an upcoming junction or bend.
Variable sport steering: More direct, precise and agile
The Electric Power Steering of the new BMW 3 Series Sedan comes standard with Servotronic speed-sensitive power assistance. Variable sport steering is part of the M Sport suspension and Adaptive M Sport suspension. With its variable ratio, which adjusts to changes in the steering angle, it is as adept at keeping the new BMW 3 Series Sedan effortlessly in a straight line as at maximizing cornering agility or turning and maneuvering comfort. In its latest form, the variable sport steering is more direct in its responses, even when only a slight steering input is applied. Cornering is precise and responsive, while the wheel angles required for parking maneuvers are achieved with less steering wheel input required.
High-performance lightweight brakes play a very important part in the sporty handling characteristics of the new BMW 3 Series Sedan. The model-specific brake discs consist of a grey cast iron friction ring with an aluminum brake disc chamber to offer high performance combined with reduced weight. The M Sport brakes provide excellent braking performance and intuitive feel, whether negotiating city streets or driving around a circuit on a track day.
Combining an extremely sporty set-up – with short pedal travel and a distinct pressure point, with outstanding thermal resistance, they provide lasting and effective stopping power. The M Sport brakes achieve this with a more direct ratio as well as a different hydraulic configuration including four piston fixed calipers at the front and single-piston floating calipers at the rear.
All the brake calipers are painted blue and display the M logo.
The functions provided by the Dynamic Stability Control (DSC) system include not only anti-lock braking (ABS) and Dynamic Traction Control (DTC), but also a variety of stabilizing functions and the Start-Off Assistant. The standard Performance Control heightens the agility of the new BMW 3 Series Sedan by distributing the power to the rear wheels as the situation allows. In order to optimize directional stability during heavy braking on surfaces with differing levels of grip for the right-hand and left-hand wheels, a steering impulse is applied to help the driver correct the car’s line. The functioning of the electromechanical parking brake is integrated into the rear brake calipers by means of the DSC system.
M Sport differential optimizes traction, agility, stability and cornering dynamics
The M Sport differential for the rear axle is available as an option for the BMW 330i in combination with M Sport suspension or Adaptive M suspension. The electronically controlled, fully variable locking function in the rear differential helps to appreciably enhance traction and cornering. The active differential lock also has a positive effect on directional stability and agility.
Using the DSC system to precisely limit rotational speed equalization between the inside and outside rear wheel when cornering optimizes the transfer of power to the road in all driving situations. The locking effect produced by an electric motor allows as much as 1,106 lb-ft of torque to be redirected from the faster-turning wheel to the slower-turning one. This means that, during rapid cornering, for example, any tendency to understeer can be countered effectively.
Here, the engine’s power, which cannot be transferred to the road by the unloaded wheel on the inside of a turn, is deliberately shifted to the wheel on the outside of the turn rather than applying the brakes to neutralize its effect. This draws the car into the bend allows and allows the new BMW 3 Series Sedan to accelerate out of the bend with grip and speed.
The effect of the M Sport differential will be equally noticeable in a series of fast bends. The distribution of power to each individual wheel prevents the tendency to oversteer in situations involving multiple changes of direction and load. Here, the transfer of more power to whichever wheel is on the inside of the bend enables the driver to stick to the chosen course with increased stability and confidence. Similarly, when the driver changes lanes and brakes at the same time, directional stability is optimized through the transfer of power between the right and left-hand rear wheels.
Exterior design: an expression of sporting prowess
The exterior design of the new BMW 3 Series Sedan uses a combination of precisely drawn lines and strikingly contoured surfaces to create a modern interpretation of the sporting aesthetic. Its new design language provides a clear showcase for the athletic character of the car. The new 3 Series Sedan is 2.9 inches longer than its predecessor, 0.6 inches wider and 0.5 inches taller. These dimensions lend the latest-generation model dynamically stretched proportions and a muscular stature. The car’s 1.6-inch longer wheelbase and increased track widths of +1.7 inches front and +0.8 inches rear, meanwhile, have a direct and positive influence on its poise and agility.
In keeping with the sporting theme, the front end of the BMW 3 Series Sedan cuts a wide, low-slung and aggressive figure. The large BMW kidney grill elements are framed by a single surround and split up by wide bars that link to the headlight units. A technically sophisticated and visually smaller interpretation of the customary BMW twin headlights gives them a road-focused stare. Their familiar two-way split is emphasized by an eye-catching notch in the front bumper that rises up into the headlight contour.
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