The 2012 Model Mercedes Actros in Detail

Hot off the press are the details of the new Mercedes Actros, shown for the first time officially at a huge press launch in Brussels last night.  The technical bods have clearly been working hard at making the new Mercedes Actros work for Euro 6 – they tell us that the new Euro 6 Actros model is more efficient than the current Euro 5 model and that Adblue consumption is down too.New 2012 Model Mercedes Actros

At the heart of the new Actros is a modular system conceived specifically for long-distance transport: seven spacious cabs, five of which have a flat floor; innovative interior ideas such as the separation of the working and living areas; a new cockpit that is both functional and attractive; a new, high-torque, clean and exceptionally economical six-cylinder in-line engine with additional torque reserves; a new frame and a dynamic chassis; further enhanced safety.

The new Actros is a veritable showcase of innovations.

It is the first and, to date, only truck which has been developed rigorously to comply with the Euro VI emissions standard. The figures certainly stack up: fuel consumption in the optional Euro V variant is around six percent lower than for the predecessor model. In the case of
the Euro VI version, the figure is around three percent lower, combined with a reduction in AdBlue consumption of around 40 percent. Maintenance and repair costs are even lower than before, as evidenced by low-cost service contracts. And on the bottom line, the Actros model in each of the emissions categories has lower overall costs than all its competitors.

Exterior: unmistakable, with “flow”, aerodynamically optimised

The unmistakable design of the new Mercedes-Benz Actros is as exceptional as the truck as a whole. Its look, developed specifically for a long-distance truck, is powerful, masculine and dynamic. At the front end, the face of the new Actros dispenses almost entirely with straight lines and flat surfaces. Curves along with contrasting concave and convex lines lend the new Actros an overriding aura of excitement and its own unique character.

The coherent form of the new Actros is particularly evident when viewed at an angle, as the full extent of the harmonious flow between the front section and the flanks can then be seen. The bumper, corner panelling and entrance form a single unit. Fluid lines are a hallmark
feature of the new Actros – which is why designers often talk about “flow”.

Much of the development work focussed on aerodynamics. The new Actros spent some 2600 hours in the wind tunnel – never before has a truck been developed and tested so intensively in a wind tunnel. Its aerodynamic design is one of major factors behind the reduction in fuel
consumption compared to its already highly economical predecessor.Interior: a living and working space like never before in a truck. A width of 2.3 or 2.5 metres, four roof variants and, without exception, the maximum length of 2.3 metres: behind these figures lies a
modular system with a choice of seven different long-distance cabs. Whereas a flat cab floor was previously a hallmark of the exclusive flagship model in a truck range, no less than five of the seven cab variants for the new Actros now feature a flat floor.

The spectacular GigaSpace cab brings a whole new meaning to the word ‘space’, with a volume of 11.6 cubic metres, a flat floor, 2.13 metres of headroom and more than 900 litres of stowage space. At the heart of the interior is a concept which visually separates the easy-to-use cockpit from the comfortable living area using colour and geometric form. The functional area of the cockpit is finished in practical anthracite whilst the rear, ceiling and area around the co‑driver’s seat are appointed in a light almond beige colour. High-quality surfaces,
the luxurious driver’s seat with optional massage function (from 2012), beds offering the comfort of home, a multifunction steering wheel, informative and attractive instruments, and asymmetrical roof stowage boxes are just some of the many aspects developed specifically for the new Actros.

Powertrain: powerful Euro VI engines with low consumption

The all-new heavy-duty engines for the new Actros likewise set standards. From the outset, the new BlueEfficiency Power engine generation offers compliance with Euro VI. The first member of the new engine family is the Mercedes-Benz OM 471 six-cylinder in-line unit
developing 310 kW (421 hp) to 375 kW (510 hp) with a torque of 2100 to 2500 Nm. A high torque, even at engine speeds below 1000 rpm, and almost peak output at 1400 rpm make for excellent driveability.

Four valves per cylinder are controlled the two overhead camshafts.  These are “composite” or “assembled” camshafts – a first for engines of this size. Another premiere arrives in the shape of the common-rail injection system with X–PULSE pressure booster. The maximum pressure in the rail, around 900 bar, is boosted to up to 2100 bar in the injectors. Charging is
performed courtesy of a turbocharger with an asymmetric turbine housing, which improves response. The engine brake, a charged decompression brake, is designed to deliver maximum efficiency. This three-stage brake achieves a maximum braking power of 400 kW.

To meet the stringent requirements imposed by the Euro VI emissions standard, Mercedes-Benz has developed a complex emission-control system consisting of SCR technology with AdBlue injection without compressed air, cooled exhaust gas recirculation (EGR) and a particulate filter. Factors behind the engine’s outstanding economy include its exceptional
robustness and longevity as well as maintenance intervals of up to 150,000 kilometres.

In all models, the power is sent to the wheels through a third-generation Mercedes PowerShift fully-automated transmission featuring highly sensitive shift sensors for even faster and more precise response. Rear axles with longer ratios reduce the engine speed
and, therefore, fuel consumption.

Chassis: feels more poised, more assured and lighter to drive than other trucks

The new Actros heralds a new area in driving dynamics for heavy-duty trucks. No other premium-category truck feels as poised, as assured and as light to drive, largely thanks to a new, wide and torsionally stiff frame designed specifically for on-road vehicles.

The fundamental design of the tried-and-tested axles remains the same as on the predecessor model; however, the developers have revised the axle control and suspension to enhance driving safety and ride comfort.

One of the decisive factors behind the exceptional handling of the new Actros is its new steering system, which delivers impressive precision and conveys excellent road feel, while the new retarder is more powerful as well as being lighter in weight.

Mercedes-Benz is once again ushering in a new era in assistance systems: the unique Proximity Control Assist system with stop-and-go function now even automatically controls starting and stopping in traffic jams – making the driver’s job easier when driving through
cities or in stop-and-go traffic.

Testing: 20 million kilometres on the road alone

Never before has a truck been as thoroughly developed and tested before its production launch as the new Mercedes-Benz Actros. The foundations for development were laid as far back as ten years ago, and Mercedes-Benz has spent five years testing the components and the complete vehicle. During this time, the new Actros clocked up around 20 million kilometres on the road, including intensive customer driving tests. On top of this, there were extremely rigorous tests on test rigs, torture-track tests and a series of other extreme examinations.

The real-life road tests covered all climatic conditions as well as extreme road conditions and gradients, ranging from an Arctic winter to an extremely hot desert climate. Real-life testing also included customer driving tests in the new Mercedes-Benz Actros.

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Source: The Van Man
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