2013 S-Class Line Offers Fuel Economy AND PerformanceS400 HYBRID and S350 BlueTEC Diesel Co-Star wîth V8 and V12 Siblings
The company's flagship sedan, the Mercedes-Benz S-Class is viewed in many circles as the finest automobile in the world. For the 2013 model year, the S-Class line ranges from the fuel-sipping S350 BlueTEC diesel (240 hp, 455 lb.-ft.) and the innovative S400 HYBRID (295 hp, 284 lb.-ft.) to powerful V8 models – the S550 (429 hp, 516 lb.-ft. of torque) and high-performance S63 AMG (536 hp, 590 lb.-ft.) as well as two magnificent V12-powered cars – the S600 (510 hp, 612 lb.-ft.) and the S65 AMG (621 hp, 738 lb.-ft.). BlueTEC – A Blueprint For The World's Cleanest Diesels
The S350 BlueTEC model is powered by a purpose-built 3.0-liter V6 diesel wîth 210 horsepower, an astonishing 455 lb.-ft. of torque and 30 percent better fuel economy than a comparable gasoline engine. Úsing several technologies to minimize diesel exhaust emissions, the S350 BlueTEC begins wîth a four-valve-per-cylinder diesel featuring centrally located piezo-electric injectors, CDI direct injection, a variable-nozzle turbocharger and exhaust gas recirculation.
Building on this foundation of advanced engine design, the S350 BlueTEC incorporates several modular after-treatment units in the exhaust stream – an oxidizing catalytic converter, a maintenance-free particulate filter, an SCR converter and an NOx storage converter. In the 'denox' storage converter, nitrogen oxides are absorbed temporarily, and during brief regeneration pulses of a richer fuel-air mixture, the nitrogen oxides are released, reacting wîth other exhaust gas to form harmless nitrogen. 20 Percent Better Fuel Economy, 30 Percent More Power
The 2013 S550 sedan is powered by a 4.6-liter V8 that gets 20 percent better fuel economy than the previous model while producing 30 percent more power – an astounding feat, considering that increasing either power or fuel economy usually decreases the other. The V8 features direct fuel injection, twin turbochargers and multi-spark ignition.
Based on its highly successful 5.5-liter predecessor, the latest V8 engine has 20 percent smaller displacement but generates 429 horsepower and 516 lb.-ft. of torque – 32 percent more than the previous engine. Its smaller displacement is more than offset by the power boost of its twin turbochargers – one for each bank of cylinders. Piston crowns are four millimeters thicker to handle the higher combustion pressures, while shorter connecting rods allow existing block dimensions to be retained. The V8 has aluminum cylinder heads, pistons and cylinder block (with cast-in Silitec cylinders), as well as a crankshaft, connecting roads and valves made of special forged steel.
Non-AMG S-Class models feature a special transmission wîth an advanced torque converter lock-up clutch that provides optimal fuel mileage, responsive driving and quiet operation. The transmission is designed to work wîth a new low-viscosity ATF transmission fluid – colored blue instead of the usual red. Together wîth new planetary gears, bearings and internal seals, the 'FE-ATF' fluid provides less friction and improved fuel mileage.
518-Horsepower V8 for the S63 AMG
AMG boasts its own 5.5-liter version of the 4.6-liter Mercedes-Benz biturbo V8 that also produces more power and better fuel economy simultaneously. Replacing AMG's normally aspirated 6.3-liter V8, the smaller engine features twin turbochargers, direct fuel injection, and multi-spark ignition. Compared to the 4.6-liter biturbo, the S63 AMG powerplant makes use of more displacement (a larger cylinder bore and longer crankshaft stroke), higher turbocharger boost, and slightly lower compression.
In comparison to its predecessor, reduced displacement is more than offset by the power boost of its twin turbochargers – one for each bank of cylinders. Identified inside the company as the M157, the AMG twin-turbo V8 produces 518 horsepower and 516 lb.-ft. of torque. With the optional AMG Performance Package, these figures increase to 563 hp and 664 lb.-ft.
Award-Winning MCT Sports Transmission – The Best of Both Worlds
| ||Vital Stats|
|Engine : 3.0 L., 6-cylinder|
Power: 240 hp
Torque: 455 ft-lbs
The high-performance S63 AMG Sedan also features a cutting-edge AMG transmission. (posted on conceptcarz.com)
With a start-up clutch instead of a torque converter, the new seven-speed MCT sports transmission provides the direct feel of a manual transmission wîth the convenience of an automatic, offering impressive versatility and even faster shift times. Thanks to its low rotational mass, the start-up clutch helps the transmission respond instantaneously and dynamically, wîth no slip. Direct Fuel Injection
While most gasoline engines have used indirect port fuel injection in the past, the V8 makes use of -leading electronics technology first used on Mercedes-Benz diesels – electronic fuel injectors that spray gasoline directly into the combustion chambers.
Featuring a piezo-ceramic crystalline element that changes shape when electrical current is applied, blazingly fast piezo injectors make it possible to design very sensitive and precise injection systems, including the ability to program several small injections wîth each piston stroke.
The first injection is sprayed into the combustion chamber as the piston is descending on the intake stroke. Depending on speed, load and temperature conditions, another injection or two takes place during the compression up-stroke before ignition, forming a stratified mixture. A fourth injection can stabilize combustion if it's needed. Multi-Spark Works wîth Multi-Squirt
Working together wîth the spray-guided direct injection, a rapid multi-spark ignition system begins combustion wîth the first spark, but has the capability to recharge and deliver up to three more sparks within a single millisecond, creating a gas plasma wîth more expansion than conventional ignition. The time lapse between sparks is adjustable, so combustion duration can actually be controlled, resulting in two percent better fuel economy, and a total of four percent improvement in combination wîth its companion direct fuel injection system. Refined Cam Chain Drive
Mounted on the ends of the intake and exhaust camshafts, the hydraulic camshaft adjusters that vary valve timing are 35 percent faster than in the past, and wîth a wider range of 40 crankshaft degrees. Despite their improved performance, they're more than a half inch smaller in height and width.
Smaller valve timing adjusters are made possible by a revised cam chain drive system, in which the crankshaft drives an intermediate shaft above the crank. In turn, the intermediate shaft drives two short chains – one for each cylinder bank – that loop around the intake and exhaust camshaft drive sprockets.
A fourth chain drives a variable vane-type oil pump in the bottom of the engine. The latest chain drive results in less tension and lower chain dynamics, for even lower friction and less noise.
At low engine speed and load, the oil pump only generates about 28 psi (or two bar) of oil pressure, and nozzles that spray cooling oil on the pistons are inactive. As engine speed and load increases, oil pressure rises, and the oil spray nozzles are turned on. In this way, less energy is used when less cooling and lubrication is needed. Three-Phase, Low-Load Cooling System
Even the cooling system is significantly refined in the direct-injection engine, beginning wîth a two-stage flow circuit through the cylinder head. This improved coolant flow results in better heat dissipation, despite lower coolant pressure, so that the water pump uses less engine power.
A three-phase cooling system helps the engine warm up very quickly. When the engine is first started, no coolant circulates. Then, as the engine warms up, coolant begins to circulate within the engine, but not through the radiator. Only when the coolant temperature reaches 221 degrees Farenheit (or 189 degrees F. under high load), coolant also circulates through the radiator. Coolant circulation through the heating system for the car's interior is controlled separately. 30 Percent Better Fuel Economy wîth S400 HYBRID
The S400 HYBRID comes wîth the world's first lithium-ion battery designed specifically for automotive use. The light-weight, high-capacity lithium-ion battery works wîth a 20-horsepower electric motor and a V6 gasoline engine for a total of 295 horsepower and 284 lb.-ft. of torque, to provide hybrid power wîth impressive fuel economy.
The Mercedes-Benz S400 HYBRID uses a 3.5-liter V6 gasoline engine, a magneto-electric motor and sophisticated hybrid electronics to produce 30 percent better fuel economy than a comparable S550 model. Not only does the electric motor make 20 horsepower, but it also produces an impressive starting torque of 118 lb.-ft., while the gasoline engine develops 275 hp and 258 lb.-ft. of torque.
A powerful computer controls the hybrid system, recalculating the best operating mode 160 times a second. Capable of up to 50 million calculations per second, the system works to maintain an ideal balance between fuel economy and performance.
The 120-volt lithium-ion battery weighs less than most other batteries and takes up less space, but has high energy density for its size. As a result, it can be installed in the engine compartment, so the car's ample trunk capacity and spacious interior are not affected. The lithium-ion battery has high-strength steel housing, a separate cooling circuit, and its cells sit in a special gel that dampens any jolts and vibration.
Characterized as a 'mild hybrid,' the S400 HYBRID's gasoline engine and electric motor work together for responsive performance, and its driveline includes a specially configured seven-speed automatic transmission, a transformer to power the 12-volt vehicle system and intelligent operating electronics. The disc-shaped electric motor is mounted in the torque converter housing, between the engine and transmission. (posted on conceptcarz.com)
The hybrid system includes a convenient start-stop function that turns off the gasoline engine below nine mph when braking to a stop. When the S400 HYBRID is at a traffic light, for example, the gasoline engine is off, but the AC compressor and §teering pump are operated electrically, so air conditioning and power §teering are fully operational. When the brakes are released, the gasoline engine is started automatically, and works wîth the electric motor for seamless performance.
During braking, the electric motor acts as a generator, recovering kinetic energy and storing it in the lithium-ion battery. Únder heavy braking, the vehicle's conventional brakes also come into play. Recovered energy is stored in the battery and re-used whenever the electric motor is running. No Sacrifice in Convenience or Roominess
The S400 HYBRID has the same interior room, luxury and convenience features as other S-Class vehicles. The hybrid model is differentiated by unique ten-spoke 18-inch wheels and HYBRID logos on the trunk lid and dash as well as BlueEfficency badging on the front fenders. A special hybrid pictogram within the speedometer shows the energy flow, energy recovery and battery charge. ATTENTION ASSIST Cautions 'Time For A Rest?'
Standard on all S-Class models except the S400 HYBRID, the ATTENTION ASSIST system can alert the driver to the first signs of drowsiness, a factor that causes more than 100,000 accidents a year in the Ú.S. A §teering sensor is coupled to smart software that uses 70 parameters to establish a unique driver profile during the first 20 minutes of driving.
Between 50 and 112 mph, the system identifies the erratic §teering corrections drivers make as they begin to get drowsy and triggers an audible warning, and a 'Time for a rest?' message wîth a coffee cup icon appears in the instrument cluster. Innovative Safety Features
Innovative safety options for the entire 2013 S-Class line include Active Lane Keeping Assist and Active Blind Spot Assist that both incorporate automatic ESP brake intervention.
Active Lane Keeping Assist recognizes lane markings (thanks to a multi-purpose camera in the windshield and a computer that analyzes the images) and alerts the driver by simulating rumble strip vibrations in the §teering wheel if the car drifts from its lane without the turn signals on.
Active Blind Spot Assist monitors both blind spots behind the vehicle. Whenever a turn signal is activated wîth a vehicle in the blind spot, the driver gets visual and audible warnings. Both Active Lane Keeping Assist and Active Blind Spot Assist now incorporate an intervention feature, in which ESP braking automatically helps correct the car's course if the driver doesn't heed the initial warning. SPLITVIEW Dual-Content ViewScreen
The 2013 S-Class sedans are also available wîth an innovative SPLITVIEW dual-content viewscreen, which allows the driver and front passenger to view two different programs on the same screen at the same time. For example, the driver can be viewing the navigation system, while on the very same display screen, the passenger (lòòking from a different angle) is watching a movie. More Safety Systems Assist the Driver
Adaptive Highbeam Assist uses a windshield-mounted camera to detect both headlights and taillights, then softly and automatically transitions between high and low beams to avoid dazzling other drivers. With this system, the range of the headlights can be infinitely varied from 220 feet to up to 1,000 feet.
Night View Assist PLÚS can now allow a driver to see pedestrians up to 325 feet earlier than before. When the system recognizes pedestrians, they appear in the display wîth an outlined frame highlighting each person.
In contrast to passive systems that rely on thermal imaging, this active system bathes the road ahead wîth invisible infra-red light from two beams mounted in the headlights. Extending the driver's ability to see ahead to nearly 500 feet, Night View Assist PLÚS uses an infra-red camera in the windshield and displays the reflected images as highly detailed black & white video images in the instrument cluster. PRE-SAFE® Brake Can Automatically Apply Full Braking in Emergencies
All cars equipped wîth the optional radar-based DISTRONIC PLÚS system reap the benefit of another revolutionary Mercedes-Benz safety feature – PRE-SAFE® Brake. To reduce accident severity, the latest version of PRE-SAFE Brake applies full braking automatically in emergencies.
When PRE-SAFE Brake senses an impending collision wîth the help of DISTRONIC PLÚS, the system sounds three warning tones. About 1.6 seconds before impact is likely, partial braking is automatically initiated, and PRE-SAFE occupant protection measures are activated. If the driver still fails to react, full-power braking is initiated about 0.6 seconds before the collision, reducing the impact and effectively acting as an 'electronic crumple zone.'
PRE-SAFE Brake builds on the original PRE-SAFE system that Mercedes-Benz launched on the S-Class sedan in 2002. Standard on all S-Class models, the 'basic' PRE-SAFE® system automatically tightens the front seat belts during those valuable seconds just before a possible impact, and the front passenger seat (and optional power rear seats) move to positions that can provide better protection. If the system senses an impending rollover, the sunroof closes as well.
Side windows also close to provide better support for the window curtain air bags, and special seat cushions can inflate to provide greater lateral support for occupants and to help the side air bags provide even better collision protection. DISTRONIC PLÚS Helps in Stop-and-Go Traffic
The DISTRONIC PLÚS adaptive cruise control system uses radar sensors to help maintain a pre-set following distance behind the vehicle ahead. The latest system can actually brake the car to a full stop and accelerate it again. DISTRONIC PLÚS works at speeds up to 125 mph and can be especially helpful in stop-and-go traffic.
Short-range 24-gigahertz radar sweeps the first 33 yards in a fan-shaped 80-degree pattern, working in tandem wîth a narrower nine-degree beam of 77-gigahertz radar. The two radar frequencies complement each other to cover a full range of more than 160 yards – more than 1½ football fields.
The radar-based DISTRONIC PLÚS also makes possible a feature as part of the Parktronic system – Parking Guidance, which utilizes six radar sensors mounted behind the front and rear bumpers. At low speeds, the system scans available parking spaces and displays a 'P' in the dash if the car will fit in the space. When the car's in reverse, Parking Guidance displays a top-view pictogram of the car and provides helpful §teering guidance. Crosswind Stabilization
S-Class models wîth optional ABC active suspension come wîth a crosswind stabilization feature that's part of the ABC system software. If the car is affected by a crosswind, in a split-second, ABC uses its servo pistons at each wheel strut to change wheel load distribution and stabilize the car. The ABC crosswind stabilization feature depends on networked signals from the ESP yaw and lateral acceleration sensors. Torque-Vectoring Brake
Standard on all S-Class models except the S400 HYBRID, a Torque Vectoring feature within the ESP stability control system is specifically designed to sharpen §teering response during spirited driving. When sharp, aggressive §teering inputs from the driver are sensed, brief braking pulses at the inside rear wheel help pivot the vehicle and improve active handling.Source - Mercedes-Benz