Mercedes-Benz Actros

Actros is the name for a truck series of Mercedes- Benz Daimler AG. He was the successor to the advanced class (SK) introduced at the IAA Commercial Vehicles 1996 and therefore initially referred to as severity class new, short SKN. In the years 2003 and 2008 involved extensive facelift, also called MP 2 and MP 3 (Model Project 2 and 3 ) are known. For the model year 2011, the second generation model was initially introduced under the name of New Actros.

• 2.1 Euro 3 engines
• 2.2 Euro -4 and Euro - 5 engines
• 2.3 Security
• 2.4 Further Development

• 3.1 Exterior
• 3.2 interior
• 3.3 Other changes
• 3.4 Transition to the next model

• 4.1 technology
• 4.2 Safety and comfort features
• 4.3 PowerShift 3
• 4.4 engines
• 4.5 cabs
• 4.6 heavy duty tractor SLT

First generation (since 1996)

Actros MP2

Since the predecessor SK after 20 years of construction was considered technically and despite several facelifts visually outdated, the introduction of the new model was preferred. As a result, Mercedes -Benz hoped to counteract the declining sales in the heavy truck segment. However, to bring the vehicle to market quickly, the manufacturer initially took a few components such as the rear axle from the predecessor model, although these modules with the model change also would have to be renewed. About a year after launch older components have been replaced with newly developed aggregates.

With the many areas completely newly developed Mercedes-Benz Actros resulted in a big way, the electronic control and networking ( CAN bus) a in commercial vehicle. In addition to the motor control of the Actros received a new transmission control, an electronically controlled brake system, and a flexible maintenance system ( in cars called Assyst ). All these components are part of the Telligent strategy. Parallel to the new Actros its predecessor SK was further offered until 1998.

Although initially well received in the trade press, soon came first criticisms to days. These included, inter alia, initially perceived as cheap classified interior appearance and immature than details. The first Actros (MP 1) also had to fight after launch with numerous technical problems and therefore was longer than immature. Despite all this criticism, the Actros achieved very good sales, but the market share in the following years dropped. Due to numerous offensives and quality improvements, the model became ultimately however the reference level of reliability in the commercial vehicle sector.

Technical innovations

Among the innovations in model implementation were:

• Introduction of a completely electronically controlled pneumatic braking system, which offers particular advantages in terms of efficiency, safety and ease of use,
• Telligent braking system with disc brakes on front and rear axle ( for construction and road use drum brakes are still available )
• Networking of control units in vehicles (CAN- bus technology for chassis and drive train, and later with truck type 2 MP adventitious also in the cab )
• Further development of the electro-pneumatic circuit (EPS ) for the Telligent gearshift system with new transmission variants,
• New engines from the OM 500 series ( V6 and V8 ) with Telligent engine management system,
• Flexible Telligent maintenance system,
• The new rear axle HL 8, which is no longer running as planetary axle.

Equipment

The Actros was the first truck from Mercedes -Benz, which was created through close cooperation between designers and aerodynamic engineers. Compared to the previous model SK the manufacturer was able to reduce drag by 17%.

First, the Actros was available with three different cab variants. The short S-cab had an exterior length of 1.70 m, while the average M-cab was 1.95 m long. Both versions have an internal height of 1.56 m. The long L- cab as the largest variant had 2.20 m Length 1.92 m inner height. The L-cab was also available with a continuous level cab floor as Megaspace version and was stored correspondingly higher than the three smaller versions.

Depending on the application are chassis with two, three or four axles with optional air suspension on all axles for election. Overall, between 3300 mm and 6300 mm wheelbase can be selected. The construction versions of the Actros ( presented in autumn 1997) are available with wheelbases between 3300 mm and 5100 mm. In these variants, the front axle can be equipped with leaf or air suspension, the rear axle is always provided with parabolic leaf springs.

In contrast to road vehicles with ventilated disc brakes on all axles, construction vehicles were equipped with 4x2 on the rear axle with drum brakes; Vehicles with more than two axles and four wheel drive have drum brakes on all axles.

On the transmission side stood a 16- speed manual gearbox as well as a hydro- actuated automatic transmission, also with 16 courses to choose from.

Engines

All Actros engines were homologated at the start according to Euro 2 emissions standard, and later to Euro 3, first applied here new series OM 500 OM 501 LA received the designations for the V6 engine and OM 502 LA for the V8. The new engine family uses a common building block for key components back ( as pistons, connecting rods, etc.). The different motor outputs are produced almost exclusively by differences in their respective software in the engine control unit ( MR). Mechanically, the OM 500 series designed for a service life of one million kilometers.

The following engines were available:

Fuel supply

New to this series is the direct injection after the pump - line-nozzle principle ( PLD), an improvement of the principle of plug-in pumps used for decades. In this case, each cylinder has its own injector pump which is driven by a separate cam on the camshaft.

The fuel supply to the plug-in pumps via a mechanical vane pump, which is combined with the power steering pump to form a unit (tandem pump) and driven via the shaft of the air compressor from the engine. There is an electromagnetic valve which is controlled by the motor control ( MR) for each individual injection pump. This makes it possible to determine the respective injection time and the injection time depends on the operating state of the MR. Relative to the crankshaft and the camshaft angle of the motor in this case determines the closing time of the solenoid valve the start of injection and the closing time, the injection quantity., The injection pressure is established mechanically by operation of the plug-in pump of the engine camshaft. The injection nozzle opens at about 300, the maximum injection pressure is, up to 1,800.

The only introduced in 2002 335 kW version of the V6 - cylinder OM 501 LA already took carried out in MP 2 measures in increasing output in advance. This power setting was therefore transferred to the facelift model unchanged.

Facelift 2003 ( Actros MP 2)

While earlier details were changed only was made after more than six years at the 2003 model year a profound visual revision. At this time, the problems of the early years were overcome, the series was already well established and maintained its position as market leader for themselves.

As part of the facelift, Mercedes- Benz revised the interior of the cab and evaluated them in future on from higher quality materials. Externally included the facelift, a new shape of the headlamps ( for the first time with bi -xenon headlamps available ) and a further smoothed front of the vehicle. Following the general trend in the heavy truck construction but received the radiator cover fewer, larger-area fins. In order to obtain the recognition value of the model, however, the basic shape of the cab remained.

Euro 3 engines

At the same time two new engines were introduced in the Actros MP, all of whom were now homologated to Euro 3. In addition, Mercedes -Benz increased its power, maximum torque of the motors easily. Specifically, the following drives were now standing for election:

Besides the revised engines, the facelift included in models to 335 kW ( 456 hp ), a new, lighter rear axle ( HL 6), as well as some new extras. For example, the new integral rear, wherein some of the vehicle components (battery, storage tank for compressed air, etc. ) to the rear axle are combined ( at the rear ). This creates the sides of the vehicle room for the use of larger or additional fuel tanks and components of the exhaust gas cleaning ( SCR catalyst and the like ). These additional system components were necessary in the course of complying with new ( and future ) emission regulations.

In addition, the Actros could now optional with super single tires ( one wide tires with run-flat system replaces the conventional dual tires ) can be ordered. Also new were the consistently designed for use with only one rider single cab interiors as well as the complete integration of trailers and special bodies in the CAN bus system of the vehicle at the MP 2.

In 2005, Mercedes- Benz unveiled the limited edition of 250 units limited edition Black Edition. This was with a 450 kW ( 612 hp) version of the popular OM 502 V8 Turbo Diesel equipped and possessed (as compared to the serial Actros ) via a upgraded interior ( birds eye maple, leather steering wheel, seat covers with eingestanztem Mercedes -Benz star ). Externally, the special model of a specially designed radiator grille with chrome trim, a new front apron with stainless steel mesh, chrome-ringed headlights, and chrome exterior mirrors can be seen.

Euro -4 and Euro - 5 engines

In 2004, new engines were again presented for the Actros ( henceforth OM 541 and OM 542 V6 V8). As the first manufacturer Mercedes- Benz unveiled engines that exhaust emission standard Euro 4 or Euro 5 corresponded. As will most other truck manufacturers, Mercedes -Benz for this so-called SCR (Selective Catalytic Reduction ) technology. Here, the exhaust gases are not, as yet common in truck engines, just inside the engine reduces ( exhaust gas recirculation), but as usual for cars cleaned by a catalytic converter in the exhaust system. In this case ( non-toxic, 32.5 percent urea solution, which is carried in a separate tank and injected into the exhaust line ) are converted to toxic nitrogen oxides into nitrogen and water vapor in a chemical reaction in the SCR catalyst with the addition of AdBlue.

This has the advantage that when the engine tuning the untreated nitrogen oxide emission can be neglected and therefore, the motor on the lowest possible emission of other pollutants ( eg particulate matter ) can be optimized. Thus, the current conflict is omitted (reduced nitrogen oxide emissions caused increased emissions of all other pollutants and vice versa). By the neglect of the nitrogen oxide raw emission efficiency of the motor can also be increased, resulting in a lower fuel consumption and / or increased engine performance result.

In order to improve the efficiency, Mercedes- Benz increased the compression ratio of 18,5:1 17,75:1 on and the ignition pressure of 170 to 180 bar and carried out further for necessary adjustments. This could in some engines increased power and torque and an additional performance class are introduced. There was also a 350 kW ( 476 hp) version of the OM 541 V6 engine with a maximum torque of 2300 Nm.

Based on the used additive AdBlue this technology is referred to at Mercedes- Benz BlueTec4 ( Euro 4) and BlueTec5 ( Euro 5).

The BlueTec engines were gradually introduced the Actros between late 2004 and early 2006, and were available in the following levels:

The aforementioned Euro - 3 engines remained for the time being still on offer, but the Euro 4 standard and from October 2009 Euro 5 standards that were mandatory for approved within the EU new vehicles from October 2006. Vehicles which meet the Euro -4 and Euro - 5 standard prior to the target date were funded in some EU countries; in Germany, for example, by a reduced toll.

Security

With the introduction of the new Actros BlueTec engines when some new security systems were presented. In addition to the now available for most long-distance truck systems ABS, ASR and driver airbag following systems were available at extra cost:

• Stability control, short ESP: stabilized within physical limits of the vehicle in critical driving situations
• Distance control: monitors and controls the safety distance to the vehicle ahead
• Lane Assistant: monitors compliance with road markings and an acoustic signal when unintentionally leaving the lane on the board speakers from
• Emergency Brake Assist is based on the distance control on, warns the driver when approaching an obstacle at first acoustic, then forwards initially a 30 percent braking and emergency braking last one. Thus, in a deviated or fallen asleep driver to rear-end collisions (eg at traffic jam ) at least the impact speed be prevented in time or drastically reduced.

Further development

An international jury of automotive journalists has selected the Actros Truck of the Year 1997, 2004, 2009 and 2012. Construction is the Actros in Wörth am Rhein and Aksaray (Turkey). In Africa, however, the Actros by the Manufacturing Commercial Vehicles is produced in Cairo and is intended for distribution within Africa and the Middle East. Another manufacturer of the Actros is the Chinese Shaanxi Heavy -duty Automobile Group Co., Ltd.. , Which produces the model exclusively for the local market.

By 2007, sold more than 500,000 Mercedes Actros, the first BlueTec5 Actros reached a mileage of one million kilometers. On the commercial vehicle show in the Amsterdam RAI, the Truck 'n' Roll Edition was presented. The name of the 3-axis show trucks (drive formula 6 × 4 ) with Megaspace cab alludes to the song Truck ' n ' Roll Rules of the band The BossHoss, which acted as advertising partners. The lavish Truck Verkoren went to the Dutch Forwarding Erhardt.

At the IAA 2006 in Hanover Mercedes- Benz presented a concept truck as design development of the Black Edition presented. The vehicle carries the name Actros SpaceMax and has a more spacious cab. Here, however, it is strictly a concept study, whose launch was not planned, but should stimulate interest in the soon forthcoming revision of the series. Transporters use trucks like the Black Edition or the Truck ' n' Roll Edition often called " fleet flagship" to enhance the company's image or as an advertising medium. The demarcating themselves from the mass models are often driven by owner- entrepreneurs ( " Owner Operator "). Comparable herewith are the special models Powerline Scania and TGA 5Star MAN.

Basis of both studies is the Actros 1860 LS; both the Truck'n'Roll and the SpaceMax are therefore 542 V8 ( 440 kW / 598 hp ) driven by the most powerful version of the OM, which transmits its power to the PowerShift 2 transmission.

Facelift 2008 ( Actros MP 3)

On 31 March 2008 the second facelift of the series, the Mercedes Actros MP 3 internally (Model Project 3 ) is referred to appeared. After the start of production in July 2008, the official presentation of the MP 3 for the general public at the IAA Commercial Vehicles from September 25 to October 2, 2008. Maintaining, the previous V6 engines OM 541 and OM 542 V8, the 235-440 kW afford (320 to 598 hp ). The Actros MP 3 presented the last optical revision of the previous Actros dar.

Exterior

This includes some of the optional illuminated by LED Mercedes star in the radiator grille, which is controlled from the dashboard. The mirrors were aligned to the previous special models ( Black Edition, SpaceMax and Truck'n'Roll ) and now have closed brackets that are either painted black or exterior color of the vehicle ( surcharge). The grille and the sun visors they were made more curved. Furthermore, were the headlights ( as was previously available with Bi - Xenon) slightly revised.

Unlike its predecessor, the MP 2 MP 3 of the radiator grille has only two ( cabs with engine tunnel ) or three ( cabins without engine tunnel ) lamellae.

Interior

Detailed changes in the interior include the standardized standard compressed air supply to the driver's seat console, the optional light and rain sensor or the optimized steering. The instruments were designed differently and are now bearing chrome rings. There are also 3 three different comfort packages were offered for the Actros MP: Basic, Classic and Top. An optional auxiliary air conditioning is available.

Other small details are the standard shaving ( L cab with high roof and Megaspace ), the towel - holders ( L cab and Megaspace ) and the optional folding table on the passenger side ( can be stowed in the rear storage compartment or in the L and Megaspace cab in the middle storage compartment on the windscreen ). The headroom in the largest cab, the variant Megaspace, is 1.92 m.

As standard, the MP 3 via a standard compressed air connection for cleaning the cab and comfort each other through a tap-indicator function ( single tap the turn signal lever solves five flashes off). In addition, Mercedes -Benz offers a specific truck navigation system. In addition to the standard air conditioning is an automatic climate control and an auxiliary air heater ( heater ) to choose from.

Other changes

Also new is the optimized 12-speed Mercedes PowerShift automated Shift 2-12, which is to reduce standard fuel consumption by a few percent. This will also cause the optional Economy Packs ( Basic and Classic) and the improved air controls. The standard battery indicator allows a permanent monitoring of the battery voltage and starting characteristics of the vehicle.

As an alternative to PowerShift 2 transmission are four different translated 16- speed synchromesh gearbox is also available, which are part of the Telligent strategy. To increase the ground clearance of the vehicles can be in addition to the known rear axles HL 6 (with engines up to 350 kW (476 hp ) and in low- liner and low -frame vehicles ) and HL 8 ( for all V8 engine ) with the planetary axle HL 7 equip.

Transition to the next model

After the successive launch of the new Actros, Mercedes -Benz will offer the previous Actros MP 3 until 2013. In addition, individual components of the MP 3 are supplied to the Finnish manufacturer Oy Sisu. When first introduced in March 2011 Sisu Polar engines, transmissions and the cab of the MP 3 come ( with custom front end ) is used. The vehicles are especially designed for the forestry and construction.

Second generation ( since 2011 )

For model year 2011, an extensive new development has brought to the market, which is named so far (November 2011) and by the manufacturer only as New Actros (factory internal SFTP, Strategic Future Truck Program ) under the established name. During the show Trailer 2011 in Kortrijk, Belgium, the new Actros end of November 2011 was chosen by an international jury of 24 European countries, Truck of the Year 2012. At the same time, the new Actros has been awarded the European Transport Prize for Sustainability 2012.

On 15 April 2011, Daimler announced in a press release, the new Actros is sold on or after 1 July 2011. Took place on 21 June 2011 at the exhibition in Brussels, the official presentation of the new Actros in front of more than 500 international journalists. The premiere in Germany in early July 2011 at the 26th Truck Grand Prix at the Nürburgring. To demonstrate visitors the 64th IAA Cars, the technology of modern trucks, Mercedes -Benz had issued the new Actros at the local leisure center. Visitors were able to make from 15 to 25 September 2011 with the engine technology and the basis of an average model ( GigaSpace ) familiar with the new cabs.

November 12, 2011 Mercedes- Benz presented the new Actros before the dealers to the public. Since such public performances vehicles of the new series were issued as part of a 30 - day customer trial of 36 freight forwarding companies and other truck operators as test vehicles and were so isolated already be seen in the streets. It was at the vehicles used to Vorserienproduktionen, but already had largely on production parts. As part of the trial, the parties committed themselves to complete 10,000 km with the test vehicles within a month at the minimum. Some of these test trucks were stuck during the testing phase yet with Tarnfolien. Since mid-November 2011 the first vehicles to be officially delivered to customers.

In contrast to all previous truck model series from Mercedes -Benz, the new Actros has been designed from the outset as a pure long-haul trucks. The vehicle is the first of a new model strategy of Mercedes -Benz trucks, which will be completed by 2013 two more models. These groups will be the areas of application in heavy local (Series Antos ) and construction traffic (Series Arocs ) cover and replace with the Actros, Axor, the previous series. The new policy model allows to adapt the vehicle developers, cabs and components to the respective area of ​​application. Since July 2012, the Actros is available in two special versions: volumer three meters in height and lighter expansion Loader with reduced curb weight ( lighter due to elimination of various components such as the radiator shutter, about 350 kg as the standard Actros ).

Since the launch of the Actros 1996 is the 2011 generation of the first Mercedes truck ( now row instead of V-engines ) shall be in addition to new engines, newly developed cabs and a specific distance transport frame with a wider track ( 834 mm instead of the previous 744 mm ). The new frame has a 50 mm hole pattern, the body manufacturers simplifies installation, and can be used as two- and three-axle vehicle ( chassis and tractor) be ordered. Available are four ( 4x2 semitrailer tractor, 3,550, 3,700, 3,850 and 4,000 mm ) or eleven different wheelbases (4x2 chassis; 3600-6600 mm in 300 mm increments ). The wheel height of the 4x2 and 6x2 tractor unit is 1.135 mm (standard height), at a low frame at 1,017 mm and the Lowliner at 946 mm (the latter only as a 4x2). For chassis is the frame height 973 mm (4x2 and 6x2 standard height ) or 885 mm ( lower frame).

Technology

The technique of this model was largely developed from scratch. This applies both to the motors as well as for the interpretation of the frame and chassis components. Several new ancillaries with demand- dependent control to reduce fuel consumption and wear.

Looking at a clean guidance of the rear axle, the developers replaced the Zweibalg air suspension previously used against a four-bellow system. It increases the carrying capacity of the axle and ensures a faster and more precise response from the suspension. Since the four small bellows also occupy less space than two large bellows, spring track could be increased. In addition, the changed lines of action of A-arm, which now intersect far behind the differential housing and thus increase the transverse stability.

As the rear axle HL inherited from the previous 6- axis ( modified hypoid set) is used, however, the revised for the new Actros and with a longer translation (now 2,611: 1; previously 2.846: 1) was provided. The higher ratio lowers the engine speed at highway speed 85 km / h to about 100 revolutions per minute. The choices are translations from 2.533 to 3.077, for the Lowliner 2.278 to 2.733 ( 2.412 series ). The front axle largely corresponds to the previous version. There are now single-leaf and two- leaf parabolic springs available. The ZF steering used was a more direct ratio and now has an improved kinematics. These changes provide a more precise driving behavior and reduce the number of necessary corrections during rapid lane changes.

As before, the retarder is derived from the company Voith, but now no longer works with the help of an oil filling, the waste heat is emitted via a heat exchanger to cool the vehicle. The new water - secondary retarder uses the engine cooling water as a lubricant and for the braking torque. Compared to its predecessor, the new retarder about 35 kg lighter ( 65 kg to 100 kg) and more powerful. It offers a maximum power of 750 kW or delay 3.500 Nm braking torque.

Besides the new Voith Retarder the 2011 Actros has a strengthened decompression brake (engine brake), which works in three steps and a maximum braking power of 400 kW ( 544 hp) within 150 milliseconds provides. The service brake of the new Actros builds on the first time in 1996 on imported and continuously developed four- wheel brake system with high-pressure system and electronic control of its predecessor.

Safety and comfort features

For the first time for the Actros a multifunctional car key (optional), which allows the rider to exit check ( headlight test, display of tire pressure, fluid levels and axle loads ) from a distance. The key has a 4.6cm color TFT display. Power is supplied by a lithium -ion battery that is charged while driving through the ignition switch. To start the driver inserts the key into the ignition switch and actuates an electronic Start-/Stopp-Knopf (comparable with the Keyless Go system of the Mercedes -Benz Cars ). The multi-function key has a range of up to 100 meters, and can withstand a fall from a maximum of three meters height.

The new key comprises the following features:

• Level control, radio, auxiliary heating on / off, stand air on / off, lamp check, working lights, locking and unlocking doors, side windows, roof hatch, Ladebordwandentriegelung, controlling interior lighting (night and interior lighting, ambient lighting (optional), status display doors / flaps ( in conjunction with alarm )
• Viewable and adjustable functions: display Außen-/Innentemperatur, odometer, trip odometer, engine hours, axle loads, levels, fuel, AdBlue, display radio link, tire pressure control, reservoir pressure circuit 1 2, battery status, doors and damper control with alarm, vehicle battery, key battery, status soft-/Hardware, languages, setting display brightness units (eg, degrees Fahrenheit (F)), timing (eg stand-by mode)
• Mechanical key bit integrated as a removable emergency key and protected against loss / Forget by sensing / display

Besides standard is a normal remote control keys to control the central locking available. He works as the multi-function key -directional, but only has a range of 30 meters, and has a Start-/Stopp-Knopf. Optional is available for both variants an alarm system.

The new Actros is an Electronic Stability Program ( ESP) part of the standard equipment (previously available at extra cost ). Similarly, the hazard warning system is standard with emergency braking automatically. As in the past, Mercedes- Benz in the new model a wide variety of security systems. Meanwhile, eleven to surcharge systems are available. New is about the Proximity Control Assist with Stop & Go function, which can automatically start again the vehicle in less than 2 seconds standstill. In addition, the wizard is no longer coupled to the retarder. In addition, the following security systems are available as an optional extra in the new Actros:

Active Safety

• Tyre pressure control ( for trailers )
• Active Brake Assist ( emergency brake assist )
• Lane Departure
• Wankregelassistent

Assistance

• Sensed fifth wheel with status indicator on the central display
• Spacer assistant with Stop & Go function for congestion ( known in the Mercedes- Benz passenger cars as Distronic )
• Rain and light sensor
• Shunting mirror ( mirror moves to a button by 10 ° to the outside )
• Cornering

Brakes

• New engine brake with max. 300/350/400/475 kW brake power (at OM 936/OM 470/OM 471/OM 473 )
• New water retarder with max. 3,500 Nm braking torque ( secondary retarder )

PowerShift 3

Buyer can choose between two different driving modes. The Economy program includes the Manual driving modes, standard and economy. The Economy mode dispenses with the function of the kickdown and uses in permanently activated EcoRoll mode, the fuel cut. Next to it is the power mode to choose from, in addition to the modes Manual and Standard includes the power mode. The switching strategy driving this program is speed -intensive and offers the possibility of kickdown to obtain short-term performance. EcoRoll mode is disabled here. Compared to the standard mode switching operations take place about 100 revolutions later. Obtained no increased power for one minute, the Powershift gearbox 3 ( G211 -12 and G281 -12 ) automatically returns to the standard mode, the next EcoRoll also offers a kick-down. In manual mode, the driver can finally initiate switching operations; about on loose or slippery surfaces. By pulling the pitman arm to the steering wheel, the transmission shifts up, down, by pushing. Switching between the modes is done by pressing on the front side of the steering column lever ( Economy / Power and Standard) or long press (Manual).

Engines

Mercedes- Benz is offering the Actros with in-line six -cylinder common -rail engines with 7.7 (OM 936 LA), 10.7 (OM 470 LA), 12.8 (OM 471 LA) and 15.6 liters of displacement ( OM 473 LA) in 16 of wattages. All variants of the new engine families are on a 20 % better mileage - now 750,000 (OM 936 ) or 1.2 million kilometers (OM 470/471 ) - designed as the previous series.

The variants of the OM 471 with 310 kW, 330 kW and 375 kW are available in Euro -5 and Euro -6 version, while the 350 kW version is only available with Euro - 6 configuration. With the exception of the 375 kW six-cylinder Mercedes -Benz equips the generation OM 471 with the top -torque electronics, so in the highest gear an additional 200 Nm of torque can be retrieved. The cylinders are always powered by a common rail system with X -Pulse technology. It ensures the variable gain of the injection admission pressure of 900 bar up to 2100 bar, and engine electronics decide, depending on engine load, whether gain or not done sooner, later. In favor of a high torque of the members of the Mercedes -Benz OM 47x engine family are emphasized long-throw. For small engines from the OM 936 series of rail injection pressure up to 2400 bar or- X -Pulse is not used.

The new series OM 473 has a special feature on the so-called Turbo Compound technology. Since December 2007, this series diesel runs with Detroit in a specific design for the U.S. market under the name DD16 ( 15.6 L) of the band. In addition, here is a 14.8 -liter version ( DD15 ) is available, which is not intended for the German market. In March 2010, the Japanese Daimler subsidiary Mitsubishi Fuso Truck and Bus Corporation ( MFTB ) began with the production of the 6R10 (OM 471 ).

The power range from 240 kW ( 326 hp) and 315 kW ( 428 hp ) covers since July 2012 from a 10.7 liter in-line six-cylinder (OM 470). As the smallest engine functions, a new 7.7 - liter six-cylinder in-line engine (OM 936 ), of between 175 kW ( 238 hp ) and 260 kW ( 354 hp) and only for the two smallest cabs (Classic Space and Stream Space ) is available. All the engines for the Actros to be built at the Mercedes- Benz plant in Mannheim and are available in EUR -6- homologation. The OM 471 is also available for Euro 5 and EEV. Individual components come here as part of a production network of partner factories in Redford (USA) and Cape Town ( South Africa).

A lush 10,000 -km fuel consumption test in the shuttle ( Record Run ) between Rotterdam and Szczecin was able to prove in 1845 with Stream Space cab ( 2,500 mm width) of the Actros, that he, an average of 7.6 % ( Euro - 5 version ) or 4 5% ( € 6 ) less diesel fuel consumption than its direct predecessor, the Actros 1844 LS MP 3 ( L cab ) with the V6 - cylinder OM 501 LA III.

Representing all model names is the 18 -ton variant, which is used for example in tractor-trailers.

Cabs

For the first time eleven different cab variants are available for the Actros, which have an exterior width of 2.30 meters or 2.50 meters. The largest variant, which is sold under the name GigaSpace, has 2.13 meters interior height ( with flat bottom ) with a volume of 11.6 cubic meters and about 1,000 liters of storage space.

In designing the new cabins are very large radiator cover stands out. This is necessary due to the increased cooling air requirements of the Euro - 6 engines. Thus, the cooling surface is now almost one square meter. However, the new Actros has two demand operation of cooling blinds. Depending on the air requirement of the electronics of the vehicle opens one of two shutters (top or bottom ), both together or leaves them in the closed state. Thereby, the aerodynamics of the truck is favored because the wind is headed with a smooth surface in the case of closed blinds to the front around. Due to the large cooling area, the cab suspension was transferred to the outside and thus increases the spring track, reducing body roll with a modified coordination of storage and reduce bounce. The storage itself can be mounted in two different heights (600 mm in cabs with engine tunnel and 765 mm in those with a flat floor).

The buyer are three different suspension options for the cabs to choose from. By default, the cabs with engine tunnel are equipped with standard steel bearings while cabins with flat bottom have a comfort - steel storage. For an extra charge air suspension with four bellows is possible.

The radio is now placed within reach of the driver on the dashboard. Optionally, a special truck navigation system is available. On the previous installation on the windshield, there are still an optional CB radio equipment and the tachograph (tachographs / digital tachograph ). See also above the windscreen, depending on cab variant various storage compartments. To the driver's seat around The interior offers different sized storage space for jackets, 1.5-liter beverage bottles, papers and small items.

The engine compartment mounted, decoupled from the cab heater is available in two versions. To heat the cab alone is a 3.8 kW version, the larger 9 kW heater heats addition, the cooling water of the vehicle engine and improves starting characteristics and operation in cold environments.

The Actros cabs in 2011 at a glance

Work and living area in the new Actros are optically isolated. For the driver's seat, four different seat designs are available (rigid seat, suspension seat, comfort and air suspension seat ) for the front passenger seat three (function fit, comfort and air suspension seat ). From 2012, a suspension seat with massage function (10 -minute pulsation by seven air cushions in the backrest) is offered. The seat reference can be selected in addition to the standard flat tissue from four types: synthetic leather, leather, suede and Alcantara similar reference Dinamica Star.

Heavy duty tractor SLT

For the model year 2014 was followed by the new Actros SLT heavy-duty tractors and Arocs SLT. This is a proprietary development of Daimler Trucks, which differs in key elements such as the motors, the cooling system, the turbo retarder coupling or the fully automated 16 -speed transmission with special travel programs for heavy-duty use.

Designed on a gross combination weight of 250 tons, the SLT- series in numerous configurations with three and four axles on the basis of Actros or Arocs is available. While the air-sprung Actros SLT -based models are only available with 2500 mm wide cabs ( GigaSpace and BigSpace ), the steel- sprung Arocs SLT (based Arocs Grounder ) can also be ordered in 2300 mm width.

Available in the following versions on Actros basis:

• Actros SLT 6x4, wheel base 3400 mm or 4000 mm
• Actros SLT 8x4, wheel base 4000 mm

Arocs based SLT- tractors are available in the following variants:

• Arocs SLT 6x4, wheel base 3300 mm or 3900 mm
• Arocs SLT 8x4, wheel base 3900 mm
• Arocs SLT 8x6, wheel base 4200 mm
• Arocs SLT 6x6, wheel base 3900 mm
• Arocs SLT 8x8, wheel base 4850 mm

Versions of the SLT four wheel drive 6x6, 8x6 and 8x8 follow in April 2014., For the new heavy-duty tractors ( 517-625 HP) was the largest six-cylinder OM 47x series, the OM 473, in three different power levels 380-460 kW for use, all in euro 6- homologation.

The control of the development was CTT ( Custom Tailored Trucks ) in the Mercedes- Benz plant in Molsheim ( France), closely coordinated with the truck development in Stuttgart. The base vehicle of the SLT is produced in Wörth truck plant and pre-built in Molsheim. This affects the cooling tower behind the cab, along with the accommodated therein components, assembly of the steered leading axle at the four-axle tractor unit and towing brackets with heavy duty couplings front and rear ( up to 1,000 tons tensile loads cope ), the sliding fifth wheel, ejection plate in the rear, the so- mentioned catwalk behind the cooling tower and working lights.