Mercedes 4MATIC enjoy the magic of a winter landscape

Posted December 15, 2009 | Category: Cars

Snow, sleet, icy roads and freezing temperatures are some of the meteorological phenomena that characterize the roads during the winter season. Class 4MATIC features the perfect combination of high traction, excellent stability, security at the top of the segment and exceptional levels of comfort. Mercedes-Benz E-Class 4MATIC version of limousine and station-wagon, confirming its outstanding quality, even on the demanding Passo del Rombo, a high-altitude alpine road in Austria.

The all-wheel drive Mercedes-Benz 4MATIC is extremely important during the winter season, further enhances the car's active safety even on wet and dry roads. The system 4MATIC is characterized from a distribution of torque 45:55 between front axle and rear axle and by a central differential multidisc limited slip with a pair of base lock of 50 Nm Thanks to this conception the basis are obtained high levels of traction, since in acceleration phase the displacement dynamic of the load toward the rear axle is compensated by the more drive torque of the rear wheels. The multi-disc differential lock is able to shift the drive torque between the front and rear, changing the allocation between 30:70 and 70:30 according to the needs of the driver and the road conditions. The intervention of the electronic control systems ESP ®, 4ETS and ASR is so limited substantially, and the drive torque is always available to the driver, even in the presence of road surface with low grip. The actions of the control systems are imperceptible.

In such situations, a yellow warning symbol flashes in the instrument inviting to adapt your driving style to the road conditions.

The 4MATIC permanent all-wheel drive offers several advantages over systems that are activated only under conditions of low grip.

Class 4MATIC is designed for maximum traction during the winter season. To this end, the automatic detection of the conditions of the road allows to match interventions of the system of electronic traction control 4ETS to obtain the maximum possible acceleration in the face of a slippage minimum of the wheels, thus ensuring an excellent directional stability. This strategy also allows the car to move forward without hesitation even in sections with the icy slope (μ-split) or both front and rear wheels without grip (μ-jump).

In snow and ice on roads full of twists and turns, the vehicle stability is primarily controlled dall'ASR, acceleration skid control, which provides for adjusting the engine torque. The thresholds of control of the ASR vary according to driving conditions of the car, measured constantly by the system of sensors of the ESP. To maintain the stability of the car is necessary to control the longitudinal force in curve through adjustment of the torque of the engine, so that they are always present sufficient lateral forces. While Navigating cornering on roads with low coefficient of friction, the torque adjustment of the engine is continuously be adapted to limits of lateral grip of the tires.

Mercedes-Benz E-Class 4MATIC is equipped with one of the best systems in the world of four-wheel drive. The idea behind the project, with the engine mounted longitudinally and the group-wheel drive transfer case and creates a compact and lightweight which minimizes frictional losses, and has many advantages over other systems for cars with transverse engine and disengageable wheel drive. The consumption of fuel, for example, is higher than of only 0.2 to 0.6 liters per hundred kilometers compared to that of an equivalent model with rear-wheel drive, while the quietness fully satisfies the high standards Mercedes-Benz.

The high ride comfort of Mercedes-Benz E-Class, achieved thanks in part to DIRECT CONTROL suspension with adaptive shock absorbers for optimum control of the rigidity of the suspension, and seats equipped with advanced features such as, for example, massage and air conditioning. The DIRECT CONTROL, optimized in weight and composed of three-arm front suspension and multilink independent rear suspension, implements a selective adjustment of the suspension damping automatically adapting to different driving situations and significantly increasing the driving comfort. The air suspension system, optional for all models as standard 4MATIC and E 500 4MATIC, is mated to a continuously variable electronic damping that, developing a series of signals from sensors, monitors each wheel separately. In this way, the wheel of the Mercedes-Benz E-Class as well as enjoy an outstanding ride comfort and active safety can count on superior agility sports.

During the winter it is essential that the cabin is air conditioned so perfectly balanced. Mercedes-Benz E-Class offers the sophisticated automatic climate control (THERMOTRONIC). In addition to adjusting the temperature separately for driver, front passenger and rear passengers, this system can also do custom presets. It is also equipped with a sensor for detecting the presence of harmful substances that automatically switches on the circulation mode if it detects a sudden increase of the percentages of carbon monoxide and nitrogen oxide in the outside air, for example inside of galleries. Another strong point of the system THERMOTRONIC is the residual heat function: pressing the "Rest", when you switch off the engine compartment is heated or ventilated for 30 minutes. Class is equipped as standard with dual-zone automatic air conditioning (THERMATIC), which purifies the air of the passenger compartment through a large combination filter sealed with an efficiency of 96-98%, thanks to the active carbon layer can to filter even the smallest particles of harmful gases.

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