Wednesday, June 22, 2011
2011 Mercedes M class review
The low fuel consumption and emissions figures to make copies impressive reading - on average, the fuel is burned throughout the model range of 25 percent less than its predecessor. Mercedes-Benz has never been able to reduce fuel consumption by a margin so large, a paradigm shift SUV. An ultra-modern engine line-up, a category value of CD-beating 0.32, large BlueEFFICIENCY measures, and development tools such as the new "transparent energy vehicles" all play their part in delivering the numbers right. Energy Efficiency The ML 250 BlueTEC 4MATIC is particularly noteworthy in this regard: it is 28 percent cheaper than its predecessor, consumes only 6.0 liters per 100 km in the NEDC driving cycle (158 g CO2/km) and can cover up to 1,500 km on one tank of fuel.
According to Mercedes-Benz brand philosophy, the new Mercedes-Benz M-Class is the epitome of the Mercedes-Benz holistic concept of security Real Life Safety, which is based on what happens in the real case of an accident. Together with crumple zones front and rear high-strength passenger cell in the M-Class offers a very effective base for the occupant protection systems. As well as active safety and security conditions of the new M-series driver is still to improve the ancillary systems that are already familiar with, especially in the S-Class and E-class.
All models of the new Mercedes-Benz M-Class range offers excellent comfort and handling dynamics of series - both on road and off-piste. In addition, the steel suspension with selective damping, there are also some of the new platform for the development of an innovative and dynamic management control available, which is designed to make driving the premium SUV an even more difficult ' experience level. These include the suspension AIRMATIC air with selective damping system (ADS), Active Roll Stabilization System active curve, and ON and OFFROAD package of six driving modes. Comprehensive package of measures has been taken to ensure that the M-Class is at the forefront of its segment of the acoustic comfort and vibration, too.
The third generation of the coveted Mercedes-Benz M-Class SUV blends the best of both worlds, benefiting from strong off-road heritage, while its passengers feel like they are moving in a premium luxury sedan. Aluminum or wood ground fine and switches the court and mix with great detail shows the surface electric and powerful, harmonious lines to create a high-class interior and a great sense of well being for both the driver and passengers.
Interior design in the details: from the economy to First Class
Third-generation Mercedes-Benz M-Class combines the best of both worlds: a lot of scope SUV not only has a strong tradition of off-road, but passengers also benefit from comfort levels comparable to a premium sedan. Shot in high-quality aluminum or wood, finely detailed and switches as well as highlights of the finish exciting and powerful, balanced lines create a sense of well being and quality of interior design as well as the driver and passengers.
The easily visible from the interior design concept combines an authentic SUV experience feelings of well-being of high quality Mercedes-Benz sedan. While a dome which has the expressive power of an SUV, the dashboard on a gentle slope in the front passenger seat area gives a wonderful sense of space, and thus highlight the ability of the car long trips.
The evolution of the dashboard of the Mercedes-Benz SUVs from the early days of the G-Class M-Class with today, makes clear the many aspects of comfort and have come to the evidence:
The G-model from 1979, defines a dashboard angular flat shapes. The angular instrument panel was placed on top of that, while the console panel, also angular, and the glove box was hung below. As if reconstituted from modular sections, each element reflects the clear appearance of a commercial vehicle. Practice spared no simple decoration, rather than giving an air of rustic charm, with a little metal, the effect. At that time, it was entirely appropriate for an off-road vehicle.
Dashboard, the first-generation M-Class in 1998 is primarily functional in nature, and only to make concessions to the initial design is based on convenience. However, the first hints nicer and kinder to the interior which can be found in the saloon was observed. Curves and sweeping lines helped to avoid the impression of austerity. Problems of structure are often not part of the cool design and visual features, however, continued to dominate.
The design of the dashboard in the new Mercedes-Benz M-Class is on a par with its counterparts found in luxury-class saloons: modern, friendly, equipped with high quality materials and stylish design. At the same time reflects the details corresponding to the global nature of a luxury SUV.
Environment SUV with the comfort of a luxury sedan
The modern Mercedes-Benz in the proper definition of an SUV is evident when you sit a comfortable level, accessible through the grand opening of the doors. The interior offers a spacious and bright room to maneuver much more than its predecessor (34 mm forward, 25 mm wider at the rear) and therefore a greater sense of space and comfort. The driver takes the wheel at the wheel 4-spoke multifunction steering wheel with twelve keystone buttons on-board computer, radio, telephone, etc. - is also a high level sedan. The transmission 7G-TRONIC PLUS automatic is directly controlled by the selector switch to select the Direct Selection paddles on the steering wheel to change.
The range extends behind the steering board. With its clear focus on the breadth below the horizontal lines within the exterior design. Campos interesting and powerful lines emphasize the vehicle's sporting aspirations.
A striking feature of the instrument panel has a large decorative trim, which is then continued along the doors to a well-balanced all-round effect. These generously sized to cut parts of the three-dimensional design, with four high-quality wood or aluminum. The interior of the new Mercedes-Benz M-Class can be appointed to meet, alone or in a refined sporty sophistication, depending on the tastes of the customer. Door opener, and the seat adjustment switches are incorporated in a professional manner with precision cut to the side of the elements. The door panels in the center of a distinctive feature of decorative stitches with a separate, exclusive research for the Sport package.
Everything is clear: the instruments and the COMAND screen
The instrument of the state of the art, the clear and easy to read discs and a large round screen black and white of 11.4 cm between them, impressed by the quality of its design. Dominating the center of the dashboard in the center of the vehicle system is the color of the screen infotainment large. You can choose between radio CD, CD radio with integrated navigation system or COMAND control and display with the latest navigation system (14.7 cm diagonal screen CD radio, 17.8 cm line Internet-enabled COMAND) . The control and display concept has been developed specifically with ease of use in mind. Navigation information and entertainment, and communication are intuitive and easy to handle with metal knob located on the center console. Two buttons are used to change screen and off.
Vertical rectangular air intakes on both sides of a large screen to highlight only the most functional aspects of the sport utility vehicle. The outer air intakes are the same shape, but in this case, the horizontal position, which gives the added touch of design. The dashboard and console, air vents with edging feature fine quality of the Silver Shadow. Row of shiny silver switches on the console dashboard features an ergonomic design and the apparent precision. The same goes for air conditioning and ventilation settings, as has been shown that the Mercedes-Benz.
The center console features an integrated arm pad, which is located in front of the driver, and a variety of switches, such as off-road programs and AIRMATIC air suspension. All controls function of the quality, uniform appearance. They create a harmonious effect, and lend elegance of the interior in many places they are used.
Many storage facilities, high degree of variability and climate-controlled cup holder
Many storage facilities readily available in the M-Class can hold bottles, cups, keys, coins and more. All four doors can easily accommodate a large bottle of 1 liter.
A slight touch of handrest storage compartment in center console fully opened, which houses a 12V battery connections and easy access for mobile audio devices. For long trips, and extensive off-road trips more enjoyable, the center console has two cup holders that can be innovative to keep drinks hot or cold at a temperature between 8 ° C and 55 ° C.
High quality materials and the values ??of strong colors
The seats of the new Mercedes-Benz M-Class is designed to provide a high degree of comfort on long journeys and the excellent team support. All important parameters can be adjusted electrically, including height, back angle, the angle of cushion and the beach. Generous seat adjustment travel of more than 350 millimeters in length and more than 90 millimeters in height ensures that drivers of all sizes can always find the ideal seating position.
A high level of variability characterized the rear seats are equipped with armrests and cup holders. The angle of the cases can be resolved, and can be bent into the relationship 1 / 3: 2 / 3, creating a feature by loading long items like skis, without having to sacrifice all seating positions rear. Folding two folders and the cushions of the front seats creates a level cargo compartment with a capacity of 2010 liters for the roof lining.
Available exclusively for the new M-Class has three seats and two seats sport six different variations of color combinations. The sports seats reserved for the whole sport has a different stitching pattern, which is also incorporated into the door panels of the Centre.
Four colors are available for appointments Interior: black, almond beige, gray alpaca and Brown / brown tobacco. These can be combined with a wide range of materials: cloth / Artico leather black leather and leather Artico in six color combinations, in cooperation with the interior sports package with black leather and microfiber Dinamica.
Details of the chassis: The dynamism and comfort
All models of the new M-Series range offers excellent comfort and handling characteristics of the series - both on road and off-piste. In addition, the steel suspension with selective damping, there are also some of the new platform for the development of an innovative and dynamic management control available, which is designed to make driving the premium SUV an even more difficult ' experience level. These include the suspension AIRMATIC air with selective damping system (ADS), Active Roll Stabilization System active curve, and ON and OFFROAD package of six driving modes. Comprehensive package of measures has been taken to ensure that the M-Class is at the forefront of its segment of the acoustic comfort and vibration, too. In order to continue to ride the full enjoyment of hundreds of thousands of kilometers, R & D to punish both the chassis and the body of practical tests will be held around the world, and a series of laboratory tests selective.
Some of the toughest tests of the body, including test structures and simulation of traffic systems trial.
A high degree of comfort, dynamic road handling and excellent off-road performance is rooted in the new Mercedes-Benz M-Class by default. The chassis of steel curved M-Class now includes selective damping for the first time, which means the forces of the shock absorbers "of a compensatory nature flexible, rather than having a rigid frame. In normal driving on moderately rough roads or off-road excursions at low speeds, the system is set for a gentle stroll to the benefit of the inhabitants feeling of well-being and off-road vehicle capacity. To keep the residents feel at ease when driving a rhythm or chest to make sudden avoidance maneuvers, the dampers switch to a farm up in such cases to a high degree of handling stability. Class M driver is supported here by an electrical control system that provides the optimal level of power assistance to meet the particular driving situation.
For those wishing to venture off the paved roads, equipped with the ML 350 BlueTEC and ML 350 4MATIC BlueEFFICIENCY 4MATIC models a full off-road specification standard, which greatly improves their ability when it becomes hard. Except 4MATIC permanent four-wheel drive and electronic traction control system 4ETS, which also includes an off-road button activates a special off-road driving:
To improve traction, the threshold of wheel slip and the crossing points of the 7G-Tronic raised MORE
Smooth throttle response curve allows for greater sensitivity of the accelerator
Off-road ABS ensures excellent braking characteristics, in particular, loose surfaces
Starting aid and HOLD function also come to help the driver when you do a hill start, while the downhill speed regulation, or RSD, allows the M-Class automatically maintain the speed set by the regulator lever speed on the descents.
For those wishing to explore off the beaten track, including the new M-Class is an option in the package and OFFROAD.
Comfort System: air suspension AIRMATIC ADS
AIRMATIC air suspension complete with selective damping system ADS also provides a soft suspension configuration is a low natural frequency, where the race is available throughout the spring, when the vehicle is fully loaded. This sets the stage for excellent comfort on the road, combined with superior handling characteristics significantly. AIRMATIC compensates for variations in vehicle load and driving the state, while the control system of the level of acting. Away from the asphalt, the air suspension for off-road vehicle performance, providing additional ride heights. The body can raise or lower the engine is running at any time, automatically or on request of the driver, a simple turn of a knob on the center console. The system is speed sensitive, which means that it lowers the body at higher speeds to minimize aerodynamic drag, increasing driving performance. Basic components of the air suspension system are:
Inflatable strut front axle with integrated shock ADS
Air springs with shock absorbers separated ADS on the rear axle
Compressor electric central pressure tank and pressure sensor
Air Valve Spring
Electronic Control Unit
Sensors for level monitoring and control of depreciation
Adaptive Damping System ADS II is a fully automatic electronic control system which adjusts the damping force of each wheel to adapt to changing requirements to use the Skyhook algorithm. Unlike a passive position of the damper constant, the movement of the vehicle is controlled in a uniform manner in all driving situations, which improves handling stability and greatly reduces the movement of the body. Skyhook algorithm controls the damping force at each wheel to reduce the forces of motion of the body shop. When the body is low agitation, the Mercedes-Benz M-Class Drive damping level 1 is active. If the speed of the body exceeds a certain limit, however, change the device and the algorithm Skyhook constantly alternating second and third level of attenuation with a short-acting solenoid valves in order to prevent rolling and pitching movements of the body.
Level 1 Soft compression / expansion for a comfortable ride soft, gentle body movements and small longitudinal and lateral acceleration
Level 2 relaxation soft / firm compression (Skyhook mode)
Level 3 Company in extension / compression soft (Skyhook mode)
Firm Level 4 compression / expansion business: to minimize fluctuations in wheel load when cornering and braking, the acceleration of high longitudinal and lateral security improved handling
The current drive mode is determined by the steering angle sensor, steering angle sensor 4 und running speed signal derived from the ESP ® brake pedal and clutch. Based on these signals, the controller calculates the damping forces required for the current and activates the appropriate damper characteristic. The driver must be able to choose from, Sport and Comfort modes manually by pressing the switch.
New dynamic handling control, cornering without roll
Active Roll Stabilization of the form of the active curve can be optionally combined with both AIRMATIC air suspension with selective damping system (ADS) and ON and OFFROAD package. This system uses an active anti-roll bars front and rear is controlled automatically as a function of lateral acceleration, speed and ADS Comfort / Sport switch. System active curve compensates for the inclination of the body through the elbows and to present more agility and driving pleasure in the process. The system must also increase the transfer of stability and therefore security, especially at high speeds. Other advantages of the active curve gives you more comfort and cornering and driving in a straight line, as well as a better off-road ability. Different control strategies in detail:
Comfort is improved when running straight ahead as the engine torque to distinguish the two halves of the front and rear roll bars in this situation, ie, an anti-roll bars are "open" and do not respond to the stimulus is only part as bumps or holes.
Increase in driving comfort and dynamic handling when cornering because the system actively influence torques of anti-roll bar and torsion angles. The torque anti-roll bar "also remains constant in response to a stimulus on one side, as is the case when driving over a pothole on the outside of the turn. Thanks to each control on front and rear axles, the distribution of the impulse roller can be varied, the characteristics of self-management to be actively adapted to the driving situation. The handling characteristics are adjusted for the extra agility while driving the along country roads and even greater stability on the highway.
When driving in extreme off-road at low speed, the two anti-roll bars front and rear are decoupled. This leaves an anti-roll bar of the "open", the major axis of articulation.
The system includes a key active componentry belt curve of the pump and the hydraulic oil tank in the engine compartment, and a valve block and active anti-roll bars front and rear. Unlike a passive stabilizer bar, the active version is divided into two in the middle, and the two halves are connected by a rotating hydraulic actuators. Using the CAN signals transmitted to him by the pressure sensor and a lateral acceleration sensor, the electronic control unit regulates the hydraulic pressure.
The complexity of the curve of the active system
The oil pump feeds the hydraulic oil tank. Pressure regulators and valves integrated directional control valve blocks in the front and rear axles to adjust the desired pressure and turn the active stabilizer bars in the right direction for the driving situation. Within the rotating hydraulic cylinders that are integrated into the workforce, roll bars, six rooms filled with oil, three of which are under pressure to each direction of travel, ie, a turn left or right. The block valve to also assume the task of distributing the oil flow between both axles, regardless of the load.
Full program: ON and OFFROAD package just in case
ON & OFFROAD package for the new M-Class uses six different driving programs to optimize driving dynamics and handling of security by offering the optimal control training is needed to address the wide range of operating conditions encountered in the both on and off road. The added benefit of the package Off-Road Pro engineering offered is already clear to see: where before there was an optimum for the road race and one for off-road, drivers now have the choice of a automatic, and two specially programmed off-road and three on the road conditions.
The specific modes of action for four-wheel resolve a conflict of objectives that have hindered the development of traction system 4MATIC and 4ETS electronic and ESP ®, ASR. To take one example: on the off-road tracks, it is important that control systems react with great caution because of low coefficients of friction, but it is a sports facility next to impossible. Conversely, a sports facility reduced basic capabilities of off-road performance. In the past, engineers still managed to find a good compromise, which worked brilliantly in all conditions and continue to do so. The new package ON & OFFROAD with its characteristic modes of conduct, however, makes driving dynamics and handling of safety must be optimized almost as much as physically possible in all operating conditions by optimizing the network between the different control systems .
The system works by using the knob on the center console, which adjusts the settings AIRMATIC and transmission fit your specific requirements. You are driving modes detailed:
Automatic - covering the wide operating range of everyday driving
Offroad 1 - the land of light, tracks, driving on the fields
Offroad 2 - challenging terrain with increasing
Winter - winter driving on roads affected by freezing rain, snow or ice, or snow chains
Sport - for serious driving on winding roads
Trailers - optimizes the Start-off, maneuvering and braking characteristics when towing a trailer
Despite all the options, the driver is no doubt about the mode of selection: the adjustment is intuitive, while the driving mode selected is shown in the multifunction display, and almost photo-realistic quality of the COMAND screen. If the driver selects the winter, for example, the display shows the M-Class in the snow. Sports adjustment has a track with red and white edges, while off-road images with different profiles appear to Offroad 1 and 2. The display is also interactive: travel twist and spring are real values, while figures include information on the angles of rotation, tilt and slope, AIRMATIC level, pre-selected speed for downhill speed regulation (DSR) and selected parameters including propulsion and differential lock.
Regardless of what the fundamental mode is set, the gearbox, differential lock, and the DSR AIRMATIC system-level control can be adjusted separately. As the basic settings and Offroad package, the driver can not make mistakes here, either. Illogical settings, which would have a negative impact on the stability of production, safety, or bet, can be prevented. In case of doubt, the system reverts to automatic mode.
In terms of "hardware", the package includes a base and ATVs, a shift transfer case with two-stage differential lock AIRMATIC wheelbase and improved functionality that allows maximum ground clearance of 285 mm and 600 mm wading deep.
Haven is quiet: the optimal vibration and acoustic comfort
The new M-Class promises a relaxed driving and thus safe in all possible (and impossible) conditions. By attention to detail every step of the way, the development engineers at Mercedes Technology Centre significantly improved, what they call the comfort level of NVH (noise, vibration, harshness). This is a crucial parameter for the overall sense of well-being on board, while contributing to driver safety fitness, especially on long trips.
Basis for a high comfort NVH offers high rigidity of the body SUV, Mercedes-Benz M-Class R & D had some special challenges here. For example, should be reserved for the construction of the optional panoramic glass roof of a large hole. Objectives driving comfort, has been less ambitious. Significant improvements were achieved in this respect than its predecessor, thanks to features such as map-controlled hydraulic engine bearings, alloy gearbox size limits, which is an integral vibration damper, and rebuilt the plate PLUS 7G-Tronic twin-engine power and the centrifugal pendulum. Noise can enter the engine compartment through the hinterland to the minimization of significant wall assemblies in plastic, and the intelligent use of insulation to meet the requirements.
Aero-acoustic enhancements include the window of the vehicle with the windshield of a high acoustic insulation, additional side sealing, as well as the rationalization of parts and accessories redesigned exterior mirrors.
The measures in brief:
Increased stiffness of the front through the final structure of spacers between the upper and lower rails
The hybrid construction of the front section to improve comfort at the same time to reduce the weight of
Traverse Cabin particularly rigid magnesium alloy
Intelligent use of insulation to meet: In production facilities, the insulation used on the body very precisely by computer-controlled robots. Insulation with varying mass distribution of parts used in the area of ??the firewall, according to the penetration of the noise potential.
Aluminum transfer bar with a built-in vibration dampers for diesel models
Optimized vibration PLUS 7G-Tronic twin engine with shock, moreover, the diesel models, centrifugal pendulum
Motor control card bearing the diesel models
Exhaust decoupled diesel models
Standard Frame selective damping, because the alternative: AIRMATIC air suspension with selective damping system, or AIRMATIC air suspension with selective damping system, and the ACTIVE SYSTEM CURVE dynamic roll stabilization
Power steering
Large collection of plastic partitions to minimize the intrusion of noise from the engine compartment to the interior
External noise is minimized by encapsulation acoustic engines
Acoustic windscreen high isolation
Other aero-acoustic seal in the sides
Test facilities of the body: the M-Class Road Simulator
Body completely reliable and chassis systems that can withstand high pressures, even under difficult conditions over hundreds of thousands of miles are particularly necessary for SUVs like the Mercedes-Benz M-Class, with a wide track and field spectrum. In addition to the practical tests of prototypes, technical resistance is also true for M-Class body to develop a comprehensive test phase of a series of studies among the toughest in the world, body and chassis. Last for several weeks, the load cycle will cover a total of 3,000 km, which corresponds to an average of 300000 km candidates for driving. This is because every kilometer route through a state-of-the-art testing equipment is 100 times harder than driving every day. SUVs that come through unscathed this time of the test is capable of withstanding the tough day of driving on and off road, Mercedes-Benz M-Class
The test program includes various "spectra of charge", that engineers refer to as virtual test tracks. Individual courses are not designed by the team of testers, however. Instead, assault digital rights, including the "Heide" test with potholes and paved sections of swirling, twisting disc special off-road with levels of maximum torque, and undulating slopes in Africa with a high frequency excitation. orchestrate Computers advanced test facilities on the basis of these data. Platforms "servo-hydraulic cylinders mercilessly beat, jerk, shake and twist the body as a real test drive. A total of 26 cylinders arranged vertically and horizontally are responsible for stimulating the body to the test. A hydraulic system generates pressure of 210 bar and pump as much as 2000 liters of oil into the cylinder every minute.
This allows large forces up to 20,000 Newtons produced a rhythm that shakes the car a thorough command of the computer.
To enable them to detect any damage at first, the Mercedes engineers stop the test beds for about 100 km each time, or when one of more than 150 sensors that continuously monitor the vehicle sends a signal to automatically stop the installation. The body is then carefully examined the slightest sign of damage. The experts are very experienced, so they know exactly where the critical points are and what you are looking for. In addition to the solder points and glued panels compounds along the paths of power transmission between the chassis and body be examined carefully because these areas have to withstand very high forces in an SUV when negotiating roads or rough sections of torsion. The applicant must be deemed to have passed the endurance test if the body shows signs of damage to zero. Even the finest cracks, which can not be detected using special fluorescent colors under ultraviolet light, is unacceptable.
Road Test bench simulation: a test for the chassis
Platforms simulation test is the road to punish the test facilities of the body. Spectra using the same load the same distance, test engineers M-Class chassis of torture in all its variants here - suspension steel base with selective damping for suspension AIRMATIC air ads for the version with active curve SYSTEM new. Unlike the test facilities of the body, it is only the chassis is installed on the test here. Pivot points are attached to the solid frame test, while the wheel hubs are connected to servo-hydraulic cylinders, using special mounting bracket. This test setup provides the complete chassis to be examined in isolation, producing more accurate results.
Compared to the sedan road test, a program of Mercedes-Benz SUV is much stronger. Test facilities as the body, the platform is also required for all different types of road and off load cycles. Unlike real-life driving a prototype, which continues to take place even under standard laboratory conditions on the material test drive simulation allows engineers to analyze the parameters of a single platform for effective and targeted action to correct vulnerabilities discovered evolution. Several weeks of laboratory tests held over a distance of 3000 km would take about six months, if implemented in real conditions.
The engines and transmissions in detail: SUV efficiency champion
Third-generation M-Class sets a new standard in the SUV segment. Low fuel consumption and emission values ??are particularly striking examples. Compared to its predecessor, the entire collection to consume 25 percent less fuel on average. This huge reduction in fuel consumption is unparalleled in any Mercedes-Benz SUVs transition to date. One of the top modern engine line-up, downsizing the motor coordination, the best-in-class drag coefficient of 0.32, a measure BlueEFFICIENCY large and new development tools such as "energy transparent vehicle" of all its parts to work to produce good efficiency figures. Highlight the guise of the ML 250 BlueTEC 4MATIC, which is 28 percent cheaper than its predecessor, has an NEDC consumption of 6.0 l/100 km of fuel (158 g km CO2), and has a capacity up to 1500 km with a full - the figures until a few years ago was to preserve and compact.
BlueTEC diesel units and the new generation engine BlueDIRECT gasoline direct injection at the base of the economy and excellent slope analysis of the life cycle of the new M-Class In this sense, the reduction is also central to the models as diesel are affected:
The ML 250 BlueTEC 4MATIC, the 3.0-liter V6 of the previous model is replaced by efficient four-cylinder unit UE6 already know the standard example S-Class.
The ML 350 BlueTEC 4MATIC has a comprehensive review of 3.0 liter V6, which also improves the standard of EU6 and offers much better performance, along with a substantial reduction in fuel consumption. Thanks to state of the art technology, AdBlue ® emission control, both diesel models easily meet the standard set for the introduction EU6 in 2014.
Engine technology of the state of the art of the inventor of the diesel passenger car
The 2.2-liter CDI 4MATIC becomes ML 250 BlueTEC the most economical SUV in its class. With NEDC fuel consumption of 6.0 l/100 km, the model even outperforms the hybrid model currently offered by competitors. Despite the low fuel consumption, the Mercedes-Benz M-Class model shows a maximum torque of 500 Nm at 1600 rpm and rated at 150 kW (204 hp) with exceptional performance: the M-Class accelerates from 0 to 100 kmh in 9.0 seconds before going on to a top speed of 210 km / h.
Two-stage turbocharging to produce high torque at low revs. Compressor - already installed in a compact SUV GLK 250 CDI 4MATIC - is a small high pressure (HP) and a large low-pressure (LP) turbocharger contribute decisively to a high performance comparable to the unit at 6 cylinders of the previous model, the ML 300 CDI 4MATIC BlueEFFICIENCY. Two turbochargers connected in series, and each turbine and the compressor is driven by this turbine. The HP turbine is located directly to the exhaust manifold and the first allows the flow of exhaust gases through it, then runs up to 215 000 revolutions per minute. HP turbine housing has an integral bypass channel, which can be opened or closed by means of payment pressure control flap. If the flip is closed, the entire stream of gas turbine exhaust flow for the HP exhaust gas energy is available only to drive the HP turbine.
This means that the optimum charge pressure can be built at low revs.
The two compressors are connected in series, and is also associated with a floodway. The combustion air from the cleaner air flow first through the low pressure compressor, where it is compressed according to the release of the LP turbine. This pre-compressed air then passes into the high pressure compressor, which is coupled to the HP turbine, where it undergoes further compression. The result is a true two-step process overeating. The main advantage of this sophisticated, demand-related control of combustion air by two turbochargers are improved cylinder charging and thus high torque at low rpm. Fuel consumption is also reduced. When the car is driven, this concept is true for harmonic driving performance without turbo lag, a couple favorable over the entire range of engine, instant responsiveness and excellent performance.
V6 diesel engine in the ML 350 BlueTEC 4MATIC provides superior traction. It develops 190 kW (258 hp) and an impressive torque of 620 Nm Despite its extraordinary performance this version offers combined fuel consumption of 6.8 liters diesel per 100 km NEDC. The highly efficient V6 diesel unit delivers superior performance with ease: the ML 350 BlueTEC 4MATIC accelerates from zero to 100 km / h in 7.4 seconds before going on to a top speed of 224 km / h. Although performance on par with the previous model, ML 450 CDI 4MATIC with the V8 diesel engine, the new unit but boasts 36 percent less fuel consumption.
Like the ML 250 BlueTEC 4MATIC, the ML 350 BlueTEC 4MATIC is also among the cleanest diesel models in the world, is BlueTEC technology developed by Mercedes-Benz to reduce diesel emissions, especially nitrogen oxides. AdBlue ®, an aqueous solution of urea is injected into the exhaust gases as part of this process, the release of ammonia, which drops to 80 percent of nitrogen oxides into harmless nitrogen and water in the downstream SCR (Selective Catalytic Reduction) catalytic converter. Results: The two models already meet EU6 exhaust emissions rate should be implemented in 2014. AdBlue ® tank is on the floor of the compartment to protect it in case of accident, has a capacity of 25.7 liters and recharge every 25 000 miles regular service. The landfill is located behind the fuel door on the side of the filler tank and is clearly marked with a bright blue cap.
This configuration allows the driver to reload the ML reservoir easily by making the most off-road capabilities of the M-Class and are unable to find a service station off the roads. AdBlue ® is available as a container to fill in all Mercedes-Benz, the dashboard provides an early indication of the need to refuel.
The latest engine with direct injection BlueDIRECT for ML 350 CDI 4MATIC
The ML 350 CDI 4MATIC petrol engine model has the revolutionary technology of the new generation of V engines from Mercedes-Benz. At the heart of all BlueDIRECT technology has improved third-generation spray-guided direct petrol engine with piezo injectors. In combination with the multi-spark ignition, this technology offers new opportunities for fuel savings.
V6 engine in the ML 350 4MATIC BlueEFFICIENCY uses a novel method of stratified combustion with a significantly expanded feature maps, fuel-efficient lean-burn technology ("homogeneous stratified mode"). As its name suggests, HOS is a combination of homogeneous stratified combustion in lean and classic. The first injection is injected into the intake stroke to form a homogeneous mixture of base. Real "stratified" injection takes place during the compression stroke before ignition, and that a single injection or double depending on the card feature.
Third-generation direct injection system also has a fast multi-spark (MSI). How it works: first spark discharge and burning during the short, the coil is rapidly discharged and continues to generate resigned. MSI system allows up to four in a row sparks delivered in a millisecond, to create a larger spatial extension of the conventional plasma ignition. Control of this high-speed multi-spark, and to delay until the next duration of the spark and burn the appropriate operating point can be adjusted optimally. This offers the opportunity to optimize the center of combustion and improve the compatibility of the remaining gas, specifically the use of stratified charge.
Ultra-modern 3.5-liter V6 has been designed for normally aspirated engines. Since a significant difference between the previous engine ML 350 4MATIC, the V-angle of the cylinder banks is reduced by 90 degrees to 60 degrees. This allowed the balance of the shaft vibration compensation to be excluded in the first place. As a result, the driver finds great comfort. It highlights the design of the 3.5-liter V6 engine includes a completely new air intake and exhaust system with variable resonance intake manifold and optimized to leave. Result: the change itself, compared to the previous capacity of 200 kW (272 hp) of the model is increased by 12.5 percent to 225 kW (306 hp), while maximum torque has increased by 5.7 per cent of 370 Nm (previously 350 Nm) and is now available speed broadest range 3500-5250 rpm.
Parallel to this substantial increase in power, the Mercedes engineers have achieved an equally impressive reduction in fuel consumption. The predecessor NEDC fuel consumption was reduced by 25 percent. The new V6 petrol engine in the ML 350 4MATIC BlueEFFICIENCY consumes 8.5 liters per 100 kilometers, which makes gasoline cheaper model of its kind. The model combines the use of performance figures for excellent dynamic, accelerates from zero to 100 km / h in 7.6 seconds and a top speed of 240 km / h.
New dimensions in energy efficiency
The performance of the Mercedes-Benz M-Class engines are particularly visible when looking at the low power consumption combined with a marked increase in power per liter for three generations since M-Class 1997. Comparison of weight-specific consumption (l/100 km to 100 kg) reveals the enormous development potential in the conventional internal combustion engine:
Champion long distance: a high level of efficiency that ensures broad long
The range of a fuel tank in the new M-Class is particularly impressive. This parameter is very important for a vehicle that knows almost no bounds. Here, the ML 250 BlueTEC 4MATIC - the cheapest SUV in its class by far - highlights. With NEDC consumption of 6.0 l/100 km diesel engine tank economic standard 70-liter can cover about 1170 km before needing to stop for fuel. If the vehicle is equipped with the optional 93-liter tank, the car can still cover up to 1,500 km between fill-ups.
Attention to detail: a fine finish adds efficiency
The excellent fuel economy is based on an extensive set of measures, as well as the BlueEFFICIENCY engine technology state of the art. In addition to the ECO start / stop function that comes standard, including new seven-speed 7G-TRONIC PLUS automatic. Axis low friction disc, power steering and tires with low rolling resistance also play a role in reducing fuel consumption.
The redesigned PLUS 7G-TRONIC, standard on all Mercedes-Benz M-Class models, has built an ECO start / stop function, sliding further down converter and optimized performance. A central role is played by the new torsional damper, eliminating the eccentricities of torsion and vibration transmission even more efficient. The decrease in engine speed and the lower number of cylinders, the worst they can be. The result is a conflict of objectives between comfort and low fuel consumption operation. Mercedes-Benz developers solved this problem by using what is called a double turbine valves, which are also equipped with a centrifugal pendulum on diesel models. Under the plan, it moves the center of gravity and allows comfortable use even in the most economical operating range. Moreover, the results optimized damping in a marked reduction of torque converter slip clutch lock, even under low load, which also contributes to fuel economy.
In addition, amortization of irregularities optimize the rotation and vibration in the transmission allows for even faster response to commands from the driver through the accelerator pedal. Bearings optimized and new management of the heat transfer oil also help reduce fuel consumption.
The belt system with decoupler intelligently optimized to control the demand for all components and auxiliary pumps, also helps reduce the energy requirements of the new M-Class oil and water pumps in the engine and pump fuel in the rear of the vehicle are activated according to actual needs. The same control logic used in air conditioning systems THERMOTRONIC THERMATIC. In the latter case, the refrigerant compressor only works when needed. A heat exchanger and the system of advanced sensors including a sensor on the windshield of fog before ensuring optimum efficiency within the air conditioning. A key factor in diesel engines is the optimization has been carried out in the flow and cons in the exhaust emission control SCR.
Consistent use of lightweight construction techniques have allowed engineers to reduce the weight of the new M-Class on par with its predecessor, despite more equipment. The links on the front and rear axles, for example with the hood and fenders are made of light yet strong aluminum alloy, while the Cross member panel is composed of magnesium.
The aerodynamics: the most aerodynamic SUV in its class
With a value of drag coefficient, or Cd of 0.32, the new Mercedes-Benz M-Class (ML 250 BlueTEC) also set a new best figure for this class of vehicle (a total drag coefficient of Cd x = 0 , 92, the predecessor to 0.94). Simulations realization of a digital prototype, and finalizing the wind tunnel has added to ensure complete air flow around the vehicle. A key factor in determining the aerodynamic resistance is low, the aerodynamic efficiency of the basic body, including the optimized design of the front bumper with integrated spoiler, the A-pillars and roof spoiler, plus a host of other detail improvements.
These include:
Tightness around the coldest part of the shutter with adjustable fan
Seals between the hood and headlights
Spoilers front wheel
Air outlet in the front and lining
Redesigned exterior mirror
Optimized roof spoiler
Side spoilers on the rear window (ML 250 BlueTEC 4MATIC)
Floor heating panels and engine compartment
Alloy optimized aerodynamics for diesel models
A detailed analysis of the "energy-transparent vehicle" to create transparency
"Energy-transparent vehicle" development tool, created in-house by Mercedes-Benz, was tested in the development of M-class. The unique opportunities offered by this method can detect opportunities for optimization, even in the smallest component to be used on all series of new models in the future. A precise and careful study of the flow of energy in the vehicle (tank to wheel) with development engineers to optimize each collection that has an impact on fuel consumption, a decrease of individual components such as wheel bearings.
The idea of ??"energy-transparent vehicle" due to the failure of the previous check, or clearly demonstrates, many factors influence fuel consumption and the interaction between saving measures. Using the "energy-transparent vehicle" of the tool, designers can now identify the details of optimization measures, reducing the energy flow of cause and effect, and analyzing the interactions of energy within the vehicle.
The process is based on complex, high precision metrology to save about 300 energy-matter of the measurement sample rate up to 1000 readings per second. Every minute, about 2.4 million measured values ??are generated, which can then be analyzed reliably identify opportunities for optimization. Complete the process of energy simulation models, which have been validated using measured variables. This allows the energy efficiency of large assemblies and individual components as well as the entire vehicle must be analyzed and quantified.
When experts have identified weaknesses in the energy component of the vehicle, they team up with specialist departments to develop solutions. This collaboration focuses on the design, or ownership of the materials used for individual components of a vehicle, such as a wheel or axle bearings. In addition, prevention strategies can be modified to produce the desired result.
"The energy of the clear vehicle", a process that is exclusively for Daimler enables engineers to product development to highlight and exploit the optimization opportunities as well as cars with conventional internal combustion engine and hybrid electric or fuel cell units . In the future, this process can take up to generally applicable to development activities on all machines, and promote energy efficiency across the board. A wide range of possible applications. Regardless of industry, power plants, (the wind), generators, pumps and transporters, and domestic refrigerators, washing machines, dryers and lawnmowers, or transportation-related applications on ships, trains or planes - Optimizing opportunities for a variety technologies for energy savings could be analyzed in detail the continued use of this technology and the implementation of the recommendations.
Details security: a star is enough
According to Mercedes-Benz brand philosophy, the new M-Series represents the epitome of the Mercedes-Benz safety concept of holistic security of Real Life, which was largely based on what is happening in the real case of an accident. Population Division of the very sound of Mercedes-Benz M-Class with crumple zones front and rear, provide a basis for an effective system of protection of passengers. As well as active safety and security conditions of the new M-series driver is still to improve systems of care, most are already familiar with the S and E-class.
As with all models of Mercedes-Benz, the philosophy behind the concept of security in the M-Class is divided into four phases:
Safe driving: avoid danger, warning and assist the driver in time
In case of danger to anticipate and the preventive
In an accident: the need to provide protection
After the accident: avoid even more serious consequences, and can help as quickly as
The high degree of safety has been achieved in the previous model has been further improved thanks to the meticulous attention to detail during the development phase. The many "invisible" Mercedes-Benz in particular solutions measurable benefits in a crash of real situations. To support new technologies or development of existing systems, engineers conducted numerous crash tests, which far exceeds the samples that are normally listed as the top-drop test, for example, and various rollover test. When it detects that it is necessary to do a rollover sensor system to enable the side airbags and seatbelt pretensioners and windows. Overall, Mercedes-Benz in the development of M-Class 36 loads tested under conditions completely different from actual test. This included extensive simulations the digital prototype. After this intensive development program, now M-Class has the potential to pass on all overseas assignments with the best possible results.
Mercedes-Benz M-Class is also able to demonstrate the potential of the highest possible protection when it comes to the most vulnerable users such as pedestrians or cyclists. In addition to areas in the front, side mirrors, and smooth contours, the risk of damage caused by vehicles has been reduced by adjusting the engine cover and increasing distance to the components in the engine compartment. In addition, for the first time in the SUV segment is equipped with a hood active as standard equipment. It is able to reduce the acceleration forces of an impact on pedestrians or cyclists by detecting them earlier.
"Electronic crumple zone" even more confident in the M-Class
As always, the best accident is an accident does not happen at all. Safety engineers at the Mercedes Technology Center are working hard on this statement sounds simple enough, in practice it is much harder to implement. The safety of both active safety and driver fitness in the new M-Class is even greater care systems many assets and liabilities:
ATTENTION ASSIST, the vehicle driver drowsiness
Assisting the speed limit, road signs showing the instrument panel
Loss of tire pressure warning system
Intelligent light with specific lighting functions to match the road and weather conditions relevant
Night View Assist Plus with automatic recognition
Adaptive brake functions with Hill Start Assist, drying brake boot, and hold function
BAS brake assist to help the driver in critical braking
DISTRONIC Plus BAS PLUS
Lane Keeping Assist warns the driver when it detects that the driver is inadvertently left a marked lanes recognized. In addition, Active Lane Keeping Assist is able to respond to corrective braking lane
Blind Spot Assist warns the driver when the vehicle is detected in the area of ??poor visibility, the "blind spot". In addition, an active Blind Spot Assist thwart a possible collision of the specific use of the brakes on one side of the vehicle if the driver does not react to the warning.
Park Assist system with parking distance control, a system that can detect the parking and maneuvering required when parking, leaving only the driver uses the brake and accelerator
Rear view camera, such as "Back-In" condition with dynamic leadership to turn in tight parking spaces, or to support the clutch of trailer
Adaptive brake lights warn vehicles behind in an emergency with flashing brake lights
Standard equipment included in the safety concept of the new M-Class includes the anticipatory safety system PRE-SAFE ®, which combines the synergy of active and passive safety to reduce the load on the vehicle's occupants in case of accident up to 40 percent. Based on potential for accidents discovered the situation, reversible steps undertaken for preventive occupant protection:
The driver and front passenger seat belts are tightened
The windows are closed
Sliding sunroof is closed
The front passenger seat is adjusted (if equipped with a package of memory)
Body: high energy absorption in frontal collisions
Population Division of the very sound of Mercedes-Benz M-Class with crumple zones front and rear, provide a basis for an effective system of protection of passengers. The emphasis in this work is a tangible reduction of the load against the people. If the first impact, the engineers were able to achieve more uniform deceleration, and thus a lower peak power is the people. This was made possible by:
Design elements like the front axle carrier crashes, which can todeform special way, and if the offset crash for example, can transfer energy to the side opposite the side effect
The novel aluminum transmission mount cross member function Offset: insulation against noise and vibration during normal operation, collisions, this component will be activated so that the hooks in the center of the tunnel will be able to absorb the excess energy in this region (diesel version)
Guide ramp on the booster, which prevents the undesirable formation of deadlock between the booster and the dome shock. The booster shot is also possible to minimize the intrusion brake pedal
A joint accident ensures that the rear fender is pushed on the driver's door, and prevents the door lock after the battle. Most doors can be opened without too much effort
Ultra-high steel in column A, which increases the stability of the passenger both before and influences in turning different scenarios, mainly doors open can easily compensate for an accident
Projected levels to create a direct load path to the front wheel. Accordingly, any intrusion or force to the wheels in the footrest can be avoided
Optimal energy conversion in the case of a collision, despite relatively short length of front-end, thank you very much for allowing the load paths of the members of faculty support Crashbox longitudinal wheel and deformable support for guiding forces in the central tunnel through the joint engine / transmission
The steering column deforms the energy absorption up to 100 mm when subjected to external forces, the release of additional space for the conversion of strain energy. As a result, loads the driver can be reduced in the area of ??the head, neck and chest
Thanks for the body to the intelligent side-impact protection
As in the design of the front of the new M-Class, the design of the vehicle body also conducts accident scenarios impressively intelligent side-impact. The specific distribution of high rigidity and high deformability, ensures that the occupants benefit from favorable kinematics in the case of a side impact:
Section B-pillar, an important part of a side impact, is highly compressible, but the top is very hard. As a result, intrusion and abuse on low speed is reduced when the upper area of ??high-strength steel outer surface of the sides of the pillars to avoid unfavorable deformation in the event of a side impact. In addition, this design solution to increase the stability of the cabin, if the machine crashes
The rigidity of the floor structure with a support of an ultra-high-strength material that crosses the entire width, and ultra high strength reinforcement in the driver's seat through, help reduce distortion, especially in the a crash against a post. As a result, the benefits of protecting the occupants of the space of survival, even better, and the occupant load is reduced chest
Geometry of the connections and the body columns and frame ultra-high-strength material has been optimized to provide better crash safety
Glossy, assembly back of the M-Class
The backcourt too much of the M-Class also protects interior situations accident robust through the specific deformation, which reduces the loads on the occupants. A special impact test conducted to check for leaks in the tank gives an indication of the exceptional cargo capacity of the rear of the Mercedes-Benz M-Class body. The test consisted of driving a car collided with the back of the class M at 80 km / h. The tank system has survived the fatal collision without suffering losses.
Improve the stiffness, increase the capacity of energy absorption and to improve the deformation behavior of a multi-piece rear longitudinal members feature a continuous closed cross-section with a plate thickness steps (tailored blanks). Spare tire and an integral part of steel bumpers and a flexible steel bracket located on the rear bumper covers, and is connected to the rear of the structure with two crashboxes steel.
Retaining overall better protection for occupants
Passive systems to protect occupants in collaboration with the "electronic crumple zone" and intelligent design of the body that have been described, which opens up possibilities for optimal protection, the placement of the M-Class at the top of its segment market. As part of a series of implementation strategies using the new. For example, the system can detect a rollover crash imminent when necessary to display the head and side windows, and seat belt pretensioners. Thanks to airbags and side airbags large new window with a wide-area coverage, collision, occupants can be supported more evenly in the shoulder region in the pelvic area and therefore better protection. thanks in side impact, too, the risk of injury is reduced to a wide coverage.
Potential additional protection is also provided for the rear passengers with pretensioners and belt force limiters on the outer seat positions. The integration of the thorax bags optional folding reclining seat provides optimal positioning for each desktop folder airbag. Components of the passive occupant protection include:
Two adaptive airbags for driver and front passenger
Driver kneebag
Side airbags for driver and front passenger (combined thorax / pelvis bags)
Side airbags in the back row of seats as an option
Bags Window on two rows of seats from A to C-pillar
3-point seatbelts for all five seats
Wheels pyrotechnic pretensioners and force limiters and permanently electrically reversible belt tensioners at the front-tensioners and wheel in one step of belt force limiters for outboard rear
ISOFIX anchorages
Belt height adjustment for driver and front passenger
Belt status screen rear-seat passengers in the recognition instrument cluster child safety automatic (optional) Disabling the passenger front airbag when a special Mercedes-Benz child seat used in rear-end collision of a passive head restraint is designed specifically for this purpose may be to reduce the forces of passengers
M-Series also protects the inhabitants after the fall of
As part of the POST-SAFE ® functions, the new M-Class activate a wide range of systems that can help prevent the risk of accidents post. After a more serious accident, the hazard lights are automatically activated to alert the surrounding traffic. While the doors are unlocked automatically, so that emergency services have the best unlimited access to passengers. And thanks to the partial opening of the side windows, the interior is better ventilated after insertion of the reservoir.
Detection of a collision, the central control unit disconnects the power supply system to reduce the potential fire hazard. When the positions of the cylinder, the engine management system for opening the injection valves of gas cylinders, which have no compression and discharge high pressure fuel directly to the evacuation of the territory of the remaining fuel in the combustion chamber. This reduces fuel leakage. In order to avoid fuel spills, all Mercedes-Benz M-Class models are also equipped with a cut-resistant fuel lines on all essential points. This also helps to reduce the potential for fire.
The system allows easy work of parking maneuvers and off-road maximizing management assistance. The SUV also scores here with the turning radius in its market segment. The 180 degree turn is negotiated within a circle diameter of only 11.8 meters. As speed increases, however, aid is reduced in favor of greater directional stability.
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