103-564: Diesel The Mercedes-Benz W210 is the internal designation for a range of executive cars manufactured by Mercedes-Benz and marketed under the E-Class model name in both sedan/saloon (1995–2002) and station wagon/estate (1996–2003) configurations. W210 development started in 1988, three years after the W124 's introduction. The W210 was designed by Steve Mattin under design chief Bruno Sacco between 1988 and 1991, later being previewed on
206-414: A carcinogen or "probable carcinogen" and is known to increase the risk of heart and respiratory diseases. In principle, a diesel engine does not require any sort of electrical system. However, most modern diesel engines are equipped with an electrical fuel pump, and an electronic engine control unit. However, there is no high-voltage electrical ignition system present in a diesel engine. This eliminates
309-515: A "neighbour-friendly" rear door that was pulled in the shut-position silently and automatically by a sensor-controlled servomotor. This allowed the use of a tighter fitting rear gate, minimizing the cabin noise in the T-model - sometimes an area of concern for station wagons. The estate cars (chassis designation S124) came in 5 or 7-seat models, the 7-seater having a rear-facing bench seat that folded flush luggage compartment cover and an optional (in
412-482: A 0–60 mph (0–97 km/h) of 6.9 seconds. Other offerings were the E 420 (1997), E 430 (1998–2002), and E 55 AMG (1999–2002) with 260 kW (354 PS; 349 hp) and a 5.4 L naturally aspirated engine. In North America, the range also features two diesels, including both non-turbocharged (1996–1997) and turbocharged (1998–1999) 3.0 litre straight-six units, that were internally designated as OM606 . In 1999, Mercedes-Benz discontinued diesel powerplants in
515-452: A diesel engine drops at lower loads, however, it does not drop quite as fast as the Otto (spark ignition) engine's. Diesel engines are combustion engines and, therefore, emit combustion products in their exhaust gas . Due to incomplete combustion, diesel engine exhaust gases include carbon monoxide , hydrocarbons , particulate matter , and nitrogen oxides pollutants. About 90 per cent of
618-471: A diesel engine, particularly at idling speeds, is sometimes called "diesel clatter". This noise is largely caused by the sudden ignition of the diesel fuel when injected into the combustion chamber, which causes a pressure wave that sounds like knocking. Mercedes-Benz W124 The Mercedes-Benz W124 is a range of executive cars made by Daimler-Benz from 1984 to 1997. The range included numerous body configurations, and though collectively referred to as
721-516: A few degrees releasing the pressure and is controlled by a mechanical governor, consisting of weights rotating at engine speed constrained by springs and a lever. The injectors are held open by the fuel pressure. On high-speed engines the plunger pumps are together in one unit. The length of fuel lines from the pump to each injector is normally the same for each cylinder in order to obtain the same pressure delay. Direct injected diesel engines usually use orifice-type fuel injectors. Electronic control of
824-407: A finite area, and the net output of work during a cycle is positive. The fuel efficiency of diesel engines is better than most other types of combustion engines, due to their high compression ratio, high air–fuel equivalence ratio (λ) , and the lack of intake air restrictions (i.e. throttle valves). Theoretically, the highest possible efficiency for a diesel engine is 75%. However, in practice
927-452: A fuel consumption of 519 g·kW ·h . However, despite proving the concept, the engine caused problems, and Diesel could not achieve any substantial progress. Therefore, Krupp considered rescinding the contract they had made with Diesel. Diesel was forced to improve the design of his engine and rushed to construct a third prototype engine. Between 8 November and 20 December 1895, the second prototype had successfully covered over 111 hours on
1030-409: A full set of valves, two-stroke diesel engines have simple intake ports, and exhaust ports (or exhaust valves). When the piston approaches bottom dead centre, both the intake and the exhaust ports are "open", which means that there is atmospheric pressure inside the cylinder. Therefore, some sort of pump is required to blow the air into the cylinder and the combustion gasses into the exhaust. This process
1133-403: A low-pressure loop at the bottom of the diagram. At 1 it is assumed that the exhaust and induction strokes have been completed, and the cylinder is again filled with air. The piston-cylinder system absorbs energy between 1 and 2 – this is the work needed to compress the air in the cylinder, and is provided by mechanical kinetic energy stored in the flywheel of the engine. Work output is done by
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#17327874263231236-532: A more efficient replacement for stationary steam engines . Since the 1910s, they have been used in submarines and ships. Use in locomotives , buses, trucks, heavy equipment , agricultural equipment and electricity generation plants followed later. In the 1930s, they slowly began to be used in some automobiles . Since the 1970s energy crisis , demand for higher fuel efficiency has resulted in most major automakers, at some point, offering diesel-powered models, even in very small cars. According to Konrad Reif (2012),
1339-433: A multi-function information system was incorporated into the instrument cluster below the speedometre, and the introduction of steering wheel controls for the audio/navigation/phone system. In addition, the 5-speed automatic transmission introduced +/- gate positions for semi-manual control of the gearbox, marketed as "Touch Shift." This electronic system replaced the previous gated shift arrangement. Exterior changes included
1442-681: A notable exception being the EMD 567 , 645 , and 710 engines, which are all two-stroke. The power output of medium-speed diesel engines can be as high as 21,870 kW, with the effective efficiency being around 47-48% (1982). Most larger medium-speed engines are started with compressed air direct on pistons, using an air distributor, as opposed to a pneumatic starting motor acting on the flywheel, which tends to be used for smaller engines. Medium-speed engines intended for marine applications are usually used to power ( ro-ro ) ferries, passenger ships or small freight ships. Using medium-speed engines reduces
1545-535: A petroleum engine with glow-tube ignition in the early 1890s; he claimed against his own better judgement that his glow-tube ignition engine worked the same way Diesel's engine did. His claims were unfounded and he lost a patent lawsuit against Diesel. Other engines, such as the Akroyd engine and the Brayton engine , also use an operating cycle that is different from the diesel engine cycle. Friedrich Sass says that
1648-415: A poorer power-to-mass ratio than an equivalent petrol engine. The lower engine speeds (RPM) of typical diesel engines results in a lower power output. Also, the mass of a diesel engine is typically higher, since the higher operating pressure inside the combustion chamber increases the internal forces, which requires stronger (and therefore heavier) parts to withstand these forces. The distinctive noise of
1751-408: A regular trunk-piston. Two-stroke engines have a limited rotational frequency and their charge exchange is more difficult, which means that they are usually bigger than four-stroke engines and used to directly power a ship's propeller. Four-stroke engines on ships are usually used to power an electric generator. An electric motor powers the propeller. Both types are usually very undersquare , meaning
1854-800: A revised front with a steeper rake, similar to the CLK , and restyled bumpers and lower body trim. Sedans received new taillights, and the wagon's tailgate was revised, moving the CHMSL from the base of the rear window to directly above it. The final W210 production included the E 320 and E 430 special editions released in two exterior colours - quartz silver (limited edition), obsidian black, and with Xenon lights, 17-inch alloy wheels and black maple walnut trim. Estate cars (sedans optionally) had Citroën -like self-leveling rear suspension with suspension struts rather than shock absorbers, gas-filled suspension spheres to provide damping and an under bonnet pressurizing pump. Unlike
1957-627: A series of 15- or 16-holes around the outer edge, often within a concentric ring. Gullideckel wheels in a variety of diameter and offset specifications were later incorporated into the facelift versions of the W126 S-Class, R107 SL and W201 190E series, and were also the 'non-option' wheel on the R129 SL-Class roadster. Much of the 124's engineering and many of its features were advanced automotive technology at its introduction, incorporating innovations that have been adopted throughout
2060-435: A simple mechanical injection system since exact injection timing is not as critical. Most modern automotive engines are DI which have the benefits of greater efficiency and easier starting; however, IDI engines can still be found in the many ATV and small diesel applications. Indirect injected diesel engines use pintle-type fuel injectors. Early diesel engines injected fuel with the assistance of compressed air, which atomised
2163-536: A single orifice injector. The pre-chamber has the disadvantage of lowering efficiency due to increased heat loss to the engine's cooling system, restricting the combustion burn, thus reducing the efficiency by 5–10%. IDI engines are also more difficult to start and usually require the use of glow plugs. IDI engines may be cheaper to build but generally require a higher compression ratio than the DI counterpart. IDI also makes it easier to produce smooth, quieter running engines with
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#17327874263232266-527: A single speed for long periods. Two-stroke engines use a combustion cycle which is completed in two strokes instead of four strokes. Filling the cylinder with air and compressing it takes place in one stroke, and the power and exhaust strokes are combined. The compression in a two-stroke diesel engine is similar to the compression that takes place in a four-stroke diesel engine: As the piston passes through bottom centre and starts upward, compression commences, culminating in fuel injection and ignition. Instead of
2369-426: A small chamber called a swirl chamber, precombustion chamber, pre chamber or ante-chamber, which is connected to the cylinder by a narrow air passage. Generally the goal of the pre chamber is to create increased turbulence for better air / fuel mixing. This system also allows for a smoother, quieter running engine, and because fuel mixing is assisted by turbulence, injector pressures can be lower. Most IDI systems use
2472-530: A source of radio frequency emissions (which can interfere with navigation and communication equipment), which is why only diesel-powered vehicles are allowed in some parts of the American National Radio Quiet Zone . To control the torque output at any given time (i.e. when the driver of a car adjusts the accelerator pedal ), a governor adjusts the amount of fuel injected into the engine. Mechanical governors have been used in
2575-400: A spark plug ( compression ignition rather than spark ignition ). In the diesel engine, only air is initially introduced into the combustion chamber. The air is then compressed with a compression ratio typically between 15:1 and 23:1. This high compression causes the temperature of the air to rise. At about the top of the compression stroke, fuel is injected directly into the compressed air in
2678-417: A swirl chamber or pre-chamber are called indirect injection (IDI) engines. Most direct injection diesel engines have a combustion cup in the top of the piston where the fuel is sprayed. Many different methods of injection can be used. Usually, an engine with helix-controlled mechanic direct injection has either an inline or a distributor injection pump. For each engine cylinder, the corresponding plunger in
2781-422: A two-stroke ship diesel engine has a single-stage turbocharger with a turbine that has an axial inflow and a radial outflow. In general, there are three types of scavenging possible: Crossflow scavenging is incomplete and limits the stroke, yet some manufacturers used it. Reverse flow scavenging is a very simple way of scavenging, and it was popular amongst manufacturers until the early 1980s. Uniflow scavenging
2884-461: Is a combustion engine that is more efficient than a diesel engine, but due to its mass and dimensions, is unsuitable for many vehicles, including watercraft and some aircraft . The world's largest diesel engines put in service are 14-cylinder, two-stroke marine diesel engines; they produce a peak power of almost 100 MW each. Diesel engines may be designed with either two-stroke or four-stroke combustion cycles . They were originally used as
2987-423: Is a simplified and idealised representation of the events involved in a diesel engine cycle, arranged to illustrate the similarity with a Carnot cycle . Starting at 1, the piston is at bottom dead centre and both valves are closed at the start of the compression stroke; the cylinder contains air at atmospheric pressure. Between 1 and 2 the air is compressed adiabatically – that is without heat transfer to or from
3090-431: Is also avoided compared with non-direct-injection gasoline engines, as unburned fuel is not present during valve overlap, and therefore no fuel goes directly from the intake/injection to the exhaust. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) can reach effective efficiencies of up to 55%. The combined cycle gas turbine (Brayton and Rankine cycle)
3193-403: Is approximately 5 MW. Medium-speed engines are used in large electrical generators, railway diesel locomotives , ship propulsion and mechanical drive applications such as large compressors or pumps. Medium speed diesel engines operate on either diesel fuel or heavy fuel oil by direct injection in the same manner as low-speed engines. Usually, they are four-stroke engines with trunk pistons;
Mercedes-Benz E-Class (W210) - Misplaced Pages Continue
3296-429: Is called scavenging . The pressure required is approximately 10-30 kPa. Due to the lack of discrete exhaust and intake strokes, all two-stroke diesel engines use a scavenge blower or some form of compressor to charge the cylinders with air and assist in scavenging. Roots-type superchargers were used for ship engines until the mid-1950s, however since 1955 they have been widely replaced by turbochargers. Usually,
3399-492: Is controlled by manipulating the air-fuel ratio (λ) ; instead of throttling the intake air, the diesel engine relies on altering the amount of fuel that is injected, and thus the air-fuel ratio is usually high. The diesel engine has the highest thermal efficiency (see engine efficiency ) of any practical internal or external combustion engine due to its very high expansion ratio and inherent lean burn, which enables heat dissipation by excess air. A small efficiency loss
3502-404: Is done on the system to which the engine is connected. During this expansion phase the volume of the gas rises, and its temperature and pressure both fall. At 4 the exhaust valve opens, and the pressure falls abruptly to atmospheric (approximately). This is unresisted expansion and no useful work is done by it. Ideally the adiabatic expansion should continue, extending the line 3–4 to the right until
3605-413: Is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the cylinder so that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of fuel is uneven; this is called a heterogeneous air-fuel mixture. The torque a diesel engine produces
3708-464: Is more complicated to make but allows the highest fuel efficiency; since the early 1980s, manufacturers such as MAN and Sulzer have switched to this system. It is standard for modern marine two-stroke diesel engines. So-called dual-fuel diesel engines or gas diesel engines burn two different types of fuel simultaneously , for instance, a gaseous fuel and diesel engine fuel. The diesel engine fuel auto-ignites due to compression ignition, and then ignites
3811-507: The EU average for diesel cars at the time accounted for half of newly registered cars. However, air pollution and overall emissions are more difficult to control in diesel engines compared to gasoline engines, and the use of diesel auto engines in the U.S. is now largely relegated to larger on-road and off-road vehicles . Though aviation has traditionally avoided using diesel engines, aircraft diesel engines have become increasingly available in
3914-722: The United Kingdom , and the United States for "Method of and Apparatus for Converting Heat into Work". In 1894 and 1895, he filed patents and addenda in various countries for his engine; the first patents were issued in Spain (No. 16,654), France (No. 243,531) and Belgium (No. 113,139) in December 1894, and in Germany (No. 86,633) in 1895 and the United States (No. 608,845) in 1898. Diesel
4017-795: The 1993 Coupé Concept shown at the Geneva Auto Show in March 1993. The W210 was the first Mercedes-Benz production car featuring Xenon headlamps (including dynamic headlamp range control, only low beam). Design patents for both the Coupé Concept and the W210 E-Class were filed on 25 February 1993 in Germany and 25 August 1993 in the US. On 21 July 1998, design patents were filed on an updated W210 (designed in 1997). For model year 2000,
4120-416: The 21st century. Since the late 1990s, for various reasons—including the diesel's inherent advantages over gasoline engines, but also for recent issues peculiar to aviation—development and production of diesel engines for aircraft has surged, with over 5,000 such engines delivered worldwide between 2002 and 2018, particularly for light airplanes and unmanned aerial vehicles . In 1878, Rudolf Diesel , who
4223-415: The 4-speed 722.4 and 722.3 automatic transmissions along with the optional 722.5 5-speed automatic, all from the previous generation W124 E-Class. For the 1997 model year, Mercedes-Benz installed an electronically controlled, new-generation automatic gearbox (NAG): the 722.6 5-speed automatic transmission to replace the previous transmissions. A five-speed manual was also available, although after
Mercedes-Benz E-Class (W210) - Misplaced Pages Continue
4326-662: The Belgian market for vehicles built between 08/1997-05/2000 Sold only in Portugal A 55 kW (75 PS; 74 hp) version with biodiesel-compatibility is available for fleet sales Power is rated at 100 kW (136 PS; 134 hp) for the Belgian market for vehicles built between 07/1999-03/2002 Sold only in Italy and Portugal Torque is rated at 400 N⋅m (295 lbf⋅ft) between 1,800-2,600 rpm for vehicles with automatic transmission The W210 E-Class carried over
4429-454: The Carnot cycle. Diesel was also introduced to a fire piston , a traditional fire starter using rapid adiabatic compression principles which Linde had acquired from Southeast Asia . After several years of working on his ideas, Diesel published them in 1893 in the essay Theory and Construction of a Rational Heat Motor . Diesel was heavily criticised for his essay, but only a few found
4532-458: The E 60 and came in sedan and wagon varieties. A limited edition 6.3L version, also badged E 60 AMG were built in 1996 generating 405 PS (298 kW; 399 hp) and 454 ft⋅lbf (616 N⋅m) of torque. In 1998 came the M113 powered E 55 which used a 5.4L V8 SOHC 24V to produce 354 PS (260 kW; 349 hp) and 391 ft⋅lbf (530 N⋅m) of torque. The body styling on all of
4635-520: The E ;280, it was only produced in 1996 and 1997 and was not available in the US market. In Australia, they cost upwards of AUD $ 185,000 (new) and there were only 49 units sold. While rare, they are nowhere near as powerful as the V8-engined AMG cars. Production figures: <400 (production models). Performance The E 36 looks identical to the E 55 (pre-facelift). The European-spec E 50
4738-574: The E-class in North America. In Europe, the diesel engines were superseded by more advanced Common Rail (CDI) units (2000–2002). The CDI engines were not offered in North America until the E 320 CDI in the newer W211 model. Electronically limited Sold only in Greece, Italy, Portugal, Turkey, Bulgaria, Croatia, Macedonia and Hungary Power is rated at 120 kW (163 PS; 161 hp) for
4841-456: The T was no longer used for estate versions. In the UK post-facelift diesels were E 250 Diesel (saloon only) and E 300 Diesel (saloon & estate) models. The W124 was also offered as a long wheelbase saloon targeted for taxi companies, but the more luxury equipped version was also used as a limousine. The table gives preproduction to end of production as per Daimler. Daimler lists November 1984 as
4944-495: The UK), & 500 E (LHD only in the UK). Diesel models consisted of the following designations; the 200 D/200 TD (not in the UK), 250 D/250 TD and the 300 D/300 TD. Facelift models produced from 1993 to 1996 used the following model designations: E 200, E 220, E 280, E 320, E 420 (not in the UK) & E 500 (LHD only in the UK). Both saloon and estate versions of the facelifted model carried the same model designation on their boot lid, i.e.
5047-463: The US until 1994) retractable cargo net . To provide a flat loading floor with the seat folded down, the T-model's rear seat squab was mounted about 10 cm (3.9 in) higher than in saloons, robbing rear seat passengers of some head room. The S124 estate continued in production alongside the new W210 until the S210 estate launched more than a year later. A two-door coupé version was also built, with
5150-453: The W-124, official internal chassis designations varied by body style: saloon ( W 124 ); estate ( S 124 ); coupé ( C 124 ); cabriolet ( A 124 ); limousine ( V 124 ); rolling chassis ( F 124 ); and long-wheelbase rolling chassis ( VF 124 ). From 1993, the 124 series was officially marketed as the E-Class . The W 124 followed the 123 series from 1984 and
5253-690: The W210 AMG models was the same until 2000 when a facelift and interior upgrades were implemented. The W210 E 55 was the last vehicle for which a major portion of production took place at AMG in Affalterbach. Production was actually split between Affalterbach and the Bremen Mercedes-Benz facility until the end of 2001. The rarest of the W210 AMG models due to low productions numbers is the European-spec E ;36. Based on
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#17327874263235356-400: The amount of fuel injected into the engine. Due to the amount of air being constant (for a given RPM) while the amount of fuel varies, very high ("lean") air-fuel ratios are used in situations where minimal torque output is required. This differs from a petrol engine, where a throttle is used to also reduce the amount of intake air as part of regulating the engine's torque output. Controlling
5459-425: The amount of offset. This ETxx is stamped on the inside of OEM rims for easy reference. The bolt pattern is 5x112 (12 mm x 1.5 lugs ), with an offset range of 30–40 mm, a wheel size range of 16"x6.0" to 20"x8.5". This is the same bolt pattern as most Mercedes, including the previous E-Class (W124). The newer Mercedes, including the 2003 (W211) to the present E-Class (W213), have 14 mm ball seats, making
5562-470: The bore is smaller than the stroke. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) often have an effective efficiency of up to 55%. Like medium-speed engines, low-speed engines are started with compressed air, and they use heavy oil as their primary fuel. Four-stroke engines use the combustion cycle described earlier. Most smaller diesels, for vehicular use, for instance, typically use
5665-756: The chassis designation C124. The E 320, E 220, and E 200 cabriolets ceased production in 1997. Indian assembly (in a joint-venture with Telco called Mercedes-Benz India) began in March 1995. Offered with five-cylinder diesel engines built by Mercedes' Indian partner Bajaj Tempo , the W124 was replaced there in December 1997. The pre-facelift models from 1985 to 1993 used the model designations: 200/200 T (carburettor), 200 E/200 TE (originally intended for Italian market due to Italy's tax rates on cars larger than 2 liters; available in Germany since September 1988), 200 CE, 230 E/230 TE, 230 CE, 260 E (saloon only), 300 E/TE, 300 CE, 300 E-24/300 CE-24/300 TE-24 valve, 400 E (not in
5768-448: The combustion chamber, the droplets continue to vaporise from their surfaces and burn, getting smaller, until all the fuel in the droplets has been burnt. Combustion occurs at a substantially constant pressure during the initial part of the power stroke. The start of vaporisation causes a delay before ignition and the characteristic diesel knocking sound as the vapour reaches ignition temperature and causes an abrupt increase in pressure above
5871-418: The combustion chamber. This may be into a (typically toroidal ) void in the top of the piston or a pre-chamber depending upon the design of the engine. The fuel injector ensures that the fuel is broken down into small droplets, and that the fuel is distributed evenly. The heat of the compressed air vaporises fuel from the surface of the droplets. The vapour is then ignited by the heat from the compressed air in
5974-425: The compressed gas. Combustion and heating occur between 2 and 3. In this interval the pressure remains constant since the piston descends, and the volume increases; the temperature rises as a consequence of the energy of combustion. At 3 fuel injection and combustion are complete, and the cylinder contains gas at a higher temperature than at 2. Between 3 and 4 this hot gas expands, again approximately adiabatically. Work
6077-452: The compression ratio in a spark-ignition engine where fuel and air are mixed before entry to the cylinder is limited by the need to prevent pre-ignition , which would cause engine damage. Since only air is compressed in a diesel engine, and fuel is not introduced into the cylinder until shortly before top dead centre ( TDC ), premature detonation is not a problem and compression ratios are much higher. The pressure–volume diagram (pV) diagram
6180-473: The compression required for his cycle: By June 1893, Diesel had realised his original cycle would not work, and he adopted the constant pressure cycle. Diesel describes the cycle in his 1895 patent application. Notice that there is no longer a mention of compression temperatures exceeding the temperature of combustion. Now it is simply stated that the compression must be sufficient to trigger ignition. In 1892, Diesel received patents in Germany , Switzerland ,
6283-416: The concept of air-blast injection from George B. Brayton , albeit that Diesel substantially improved the system. On 17 February 1894, the redesigned engine ran for 88 revolutions – one minute; with this news, Maschinenfabrik Augsburg's stock rose by 30%, indicative of the tremendous anticipated demands for a more efficient engine. On 26 June 1895, the engine achieved an effective efficiency of 16.6% and had
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#17327874263236386-424: The cost of smaller ships and increases their transport capacity. In addition to that, a single ship can use two smaller engines instead of one big engine, which increases the ship's safety. Low-speed diesel engines are usually very large in size and mostly used to power ships . There are two different types of low-speed engines that are commonly used: Two-stroke engines with a crosshead, and four-stroke engines with
6489-616: The diesel engine is Diesel's "very own work" and that any "Diesel myth" is " falsification of history ". Diesel sought out firms and factories that would build his engine. With the help of Moritz Schröter and Max Gutermuth [ de ] , he succeeded in convincing both Krupp in Essen and the Maschinenfabrik Augsburg . Contracts were signed in April 1893, and in early summer 1893, Diesel's first prototype engine
6592-449: The diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug -ignition of the air-fuel mixture, such as a petrol engine ( gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas ). Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation , "EGR"). Air
6695-417: The efficiency is much lower, with efficiencies of up to 43% for passenger car engines, up to 45% for large truck and bus engines, and up to 55% for large two-stroke marine engines. The average efficiency over a motor vehicle driving cycle is lower than the diesel engine's peak efficiency (for example, a 37% average efficiency for an engine with a peak efficiency of 44%). That is because the fuel efficiency of
6798-408: The environment – by the rising piston. (This is only approximately true since there will be some heat exchange with the cylinder walls .) During this compression, the volume is reduced, the pressure and temperature both rise. At or slightly before 2 (TDC) fuel is injected and burns in the compressed hot air. Chemical energy is released and this constitutes an injection of thermal energy (heat) into
6901-463: The facelift for the 2000 model year, it was replaced by a six-speed manual . The 5-speed transmission was marketed as "sealed for life"; however, Mercedes-Benz dealers now recommend changing the fluid at regular intervals. The W210 chassis originally came with one of the following OEM wheel setups: ET is the German abbreviation for Einpresstiefe or offset , where the number is in mm and indicates
7004-463: The four-stroke cycle. This is due to several factors, such as the two-stroke design's narrow powerband which is not particularly suitable for automotive use and the necessity for complicated and expensive built-in lubrication systems and scavenging measures. The cost effectiveness (and proportion of added weight) of these technologies has less of an impact on larger, more expensive engines, while engines intended for shipping or stationary use can be run at
7107-616: The fuel and forced it into the engine through a nozzle (a similar principle to an aerosol spray). The nozzle opening was closed by a pin valve actuated by the camshaft . Although the engine was also required to drive an air compressor used for air-blast injection, the efficiency was nonetheless better than other combustion engines of the time. However the system was heavy and it was slow to react to changing torque demands, making it unsuitable for road vehicles. A unit injector system, also known as "Pumpe-Düse" ( pump-nozzle in German) combines
7210-700: The fuel injection transformed the direct injection engine by allowing much greater control over the combustion. Common rail (CR) direct injection systems do not have the fuel metering, pressure-raising and delivery functions in a single unit, as in the case of a Bosch distributor-type pump, for example. A high-pressure pump supplies the CR. The requirements of each cylinder injector are supplied from this common high pressure reservoir of fuel. An Electronic Diesel Control (EDC) controls both rail pressure and injections depending on engine operating conditions. The injectors of older CR systems have solenoid -driven plungers for lifting
7313-405: The fuel pump measures out the correct amount of fuel and determines the timing of each injection. These engines use injectors that are very precise spring-loaded valves that open and close at a specific fuel pressure. Separate high-pressure fuel lines connect the fuel pump with each cylinder. Fuel volume for each single combustion is controlled by a slanted groove in the plunger which rotates only
7416-461: The gaseous fuel. Such engines do not require any type of spark ignition and operate similar to regular diesel engines. The fuel is injected at high pressure into either the combustion chamber , "swirl chamber" or "pre-chamber," unlike petrol engines where the fuel is often added in the inlet manifold or carburetor . Engines where the fuel is injected into the main combustion chamber are called direct injection (DI) engines, while those which use
7519-403: The guidelines of the project. During the winter of 1980–1981, the final exterior for the W124 program was completed, chosen as the leading proposal by design director Bruno Sacco, and approved by the board of management in early 1981. By mid-1982, the first prototypes reflective of the production design, were assembled and sent to testing. In March 1984, pilot production commenced and development of
7622-478: The industry. It had one of the lowest coefficient of drag (Cd) of any vehicle of the time (0.28 for the 200/200D model for the European market with 185/65 R15 tires) due to its aerodynamic body, that included plastic molding for the undercarriage to streamline airflow beneath the car, reducing fuel consumption and wind noise. It had a single windscreen wiper that had an eccentric mechanism at its base that extended
7725-419: The injection needle, whilst newer CR injectors use plungers driven by piezoelectric actuators that have less moving mass and therefore allow even more injections in a very short period of time. Early common rail system were controlled by mechanical means. The injection pressure of modern CR systems ranges from 140 MPa to 270 MPa. An indirect diesel injection system (IDI) engine delivers fuel into
7828-553: The injector and fuel pump into a single component, which is positioned above each cylinder. This eliminates the high-pressure fuel lines and achieves a more consistent injection. Under full load, the injection pressure can reach up to 220 MPa. Unit injectors are operated by a cam and the quantity of fuel injected is controlled either mechanically (by a rack or lever) or electronically. Due to increased performance requirements, unit injectors have been largely replaced by common rail injection systems. The average diesel engine has
7931-476: The mistake that he made; his rational heat motor was supposed to utilise a constant temperature cycle (with isothermal compression) that would require a much higher level of compression than that needed for compression ignition. Diesel's idea was to compress the air so tightly that the temperature of the air would exceed that of combustion. However, such an engine could never perform any usable work. In his 1892 US patent (granted in 1895) #542846, Diesel describes
8034-454: The one man one engine philosophy, only available in left hand drive European markets although many were exported to Japan from new. It is estimated around 2,800 E 50's were ever produced in its limited production run. There was also an option for the M119.980 V8 that was bored out to 6.0L and increased power to 381 PS (280 kW; 376 hp) the cars these were fitted to were designated as
8137-590: The options were standard in North America . Rare options were Parktronic (sonar parking sensors on front and rear bumpers), COMAND navigation 2000-2002 (CD based map) with integrated single CD player AM/FM/Weather band in dash radio with steering mounted controls, remote trunk mounted 6 disk CD player, Mercedes Tele-Aid satellite/cellular communication (2000-2002) cooled/heated vented seats, voice control radio/navigation and built in cellular telephone. E55 Wagon (Estate) not offered to North American market. The W210
8240-534: The past, however electronic governors are more common on modern engines. Mechanical governors are usually driven by the engine's accessory belt or a gear-drive system and use a combination of springs and weights to control fuel delivery relative to both load and speed. Electronically governed engines use an electronic control unit (ECU) or electronic control module (ECM) to control the fuel delivery. The ECM/ECU uses various sensors (such as engine speed signal, intake manifold pressure and fuel temperature) to determine
8343-480: The piston (not shown on the P-V indicator diagram). When combustion is complete the combustion gases expand as the piston descends further; the high pressure in the cylinder drives the piston downward, supplying power to the crankshaft. As well as the high level of compression allowing combustion to take place without a separate ignition system, a high compression ratio greatly increases the engine's efficiency. Increasing
8446-403: The piston-cylinder combination between 2 and 4. The difference between these two increments of work is the indicated work output per cycle, and is represented by the area enclosed by the pV loop. The adiabatic expansion is in a higher pressure range than that of the compression because the gas in the cylinder is hotter during expansion than during compression. It is for this reason that the loop has
8549-417: The pollutants can be removed from the exhaust gas using exhaust gas treatment technology. Road vehicle diesel engines have no sulfur dioxide emissions, because motor vehicle diesel fuel has been sulfur-free since 2003. Helmut Tschöke argues that particulate matter emitted from motor vehicles has negative impacts on human health. The particulate matter in diesel exhaust emissions is sometimes classified as
8652-408: The pressure falls to that of the surrounding air, but the loss of efficiency caused by this unresisted expansion is justified by the practical difficulties involved in recovering it (the engine would have to be much larger). After the opening of the exhaust valve, the exhaust stroke follows, but this (and the following induction stroke) are not shown on the diagram. If shown, they would be represented by
8755-655: The sedan concluded with engineering sign-off. Front suspension used a separate spring and damper with a rubber top mount. The rear suspension of the W124 featured the Mercedes multi-link axle introduced in 1982 with the Mercedes W201 and which is now standard on many modern cars. Estate cars (and optionally, saloons and coupés) had Citroën-like rear self-leveling suspension with suspension struts rather than shock absorbers, gas-filled suspension spheres to provide damping and an under bonnet pressurizing pump. Unlike
8858-412: The start of production for the series but also lists 1985 as part of preproduction for any specific early model. No regular deliveries occurred in 1984. Mercedes-Benz sold a high performance version of the W124, the 500 E , created in close cooperation with and assembled by Porsche . It used the 5.0 L 32-valve V8 M119 Engine based on the engine from the 500 SL (R129) roadster. Porsche engineered
8961-460: The suspension and chassis design with a performance bias. Mercedes entered an agreement with Porsche to assemble the vehicles at their plant in Zuffenhausen , as the automaker was in crisis, and its factory capacity was underutilized. Porsche also constructed the chassis for the 400 E, which was in essence identical to the 500 E's chassis. In some countries, the final batch of W124
9064-544: The test bench. In the January 1896 report, this was considered a success. In February 1896, Diesel considered supercharging the third prototype. Imanuel Lauster , who was ordered to draw the third prototype " Motor 250/400 ", had finished the drawings by 30 April 1896. During summer that year the engine was built, it was completed on 6 October 1896. Tests were conducted until early 1897. First public tests began on 1 February 1897. Moritz Schröter 's test on 17 February 1897
9167-890: The timing of the start of injection of fuel into the cylinder is similar to controlling the ignition timing in a petrol engine. It is therefore a key factor in controlling the power output, fuel consumption and exhaust emissions. There are several different ways of categorising diesel engines, as outlined in the following sections. Günter Mau categorises diesel engines by their rotational speeds into three groups: High-speed engines are used to power trucks (lorries), buses , tractors , cars , yachts , compressors , pumps and small electrical generators . As of 2018, most high-speed engines have direct injection . Many modern engines, particularly in on-highway applications, have common rail direct injection . On bigger ships, high-speed diesel engines are often used for powering electric generators. The highest power output of high-speed diesel engines
9270-509: The traditional Citroën application, the Mercedes suspension system had a fixed ride height and employed rear coil springs to maintain the static ride height when parked. The W124 was the first Mercedes series to be fitted with the iconic 15-hole, flat-faced alloy wheels characteristic of Mercedes-Benz cars of the 1980s and 1990s. The alloy wheels were nicknamed 'Gullideckel' or manhole covers , because they resemble manhole or drainage covers in Germany, which are consistently round in shape with
9373-421: The traditional Citroën application Mercedes opted for a fixed ride height and employed rear coil springs to maintain the static ride height when parked. This was the first time a V6 engine was offered (model year 1998) to replace the straight-six configuration (1995–1997). This new Mercedes-Benz M112 engine produced 165 kW (224 PS; 221 hp) and 315 N⋅m (232 lb⋅ft) of torque and offered
9476-536: The wheels interchangeable only with the use of aftermarket lugs that combine a 14 mm ball seat (also known as "R14", the "R" meaning radius) with a 12 mm thread. There were four engines that AMG installed in the W210. The first was the E 36, M104.995, launched in 1996 for select markets then the M119.980 in the E 50 AMG produced from early 1996 until late 1997. This model was assembled in Affalterbach under
9579-407: The wiper's reach to the top corners of the windscreen (more than if it had traveled in a simple arc). The saloon/sedan, coupés and convertibles had optional rear headrests that would fold down remotely to improve rearward visibility when required. This feature was not available for the T-model because of its specific layout (no space to store the retractable headrests), but the estate serially came with
9682-467: Was a mid-sized vehicle platform, which entered planning in the autumn of 1976 under development Hans Scherenberg. In July 1977, the W124 program officially began, with R&D commencing work under newly appointed Werner Breitschwerdt. In April 1978, decisions were made to base it on the Mercedes-Benz W201 model program. By April 1979, a package plan was completed for the program, laying out
9785-1896: Was a rare version of the W210 E 55 AMG, of which only 653 units were produced in 2001. It has a 5.5-litre V8 that produces 354 hp (359 PS; 264 kW) and 391 lb⋅ft (530 N⋅m) of torque. Various road tests revealed ranges of 0–60 mph (0–97 km/h) times in 4.8-5.3 seconds and quarter-mile times in 13.3–13.5 seconds at around 105–107 mph (169–172 km/h). Common items were AMG exclusive "Condor" leather, black birdseye maple interior wood trim, AMG monoblock staggered 18-inch wheels and tires, AMG sport suspension, AMG brakes, AMG/Avantgarde front and rear body aprons with "dynamic" side skirts, AMG body shell modification, HID xenon headlights, Avantgarde fog lamps, heated multicontour AMG sport seats with power and memory, multifunction computer, automatic climate control system, Bose premium sound system, power tilt and telescoping leather-covered AMG multifunction sport steering wheel, power glass sunroof, power rear sun shade, and blue glass. Most of these items were standard in North America . Suspension After model year 2000 Bilstein gas shock absorbers and progressive-rate springs were added with larger, solid stabilizer bars. Brakes Hydraulic dual-circuit braking system with vacuum servo unit, disk brakes, internally ventilated, two piece front "floating" rotors and 2-piston front floating calipers. Steering Wheels and tires (tyres) Dimensions and weight Options available Power adjustable front seats, power tilt & telescoping leather-covered AMG sport steering wheel, leather upholstery, leather shift knob, 5 speed automatic transmission, Brake Assist System (BAS), Electronic Stability System (ESP), automatic climate control with charcoal filter, heated front seats, heated rear seats (European models), front and side airbags, power windows, metallic paint, xenon HID headlamps . Most of
9888-532: Was a student at the "Polytechnikum" in Munich , attended the lectures of Carl von Linde . Linde explained that steam engines are capable of converting just 6–10% of the heat energy into work, but that the Carnot cycle allows conversion of much more of the heat energy into work by means of isothermal change in condition. According to Diesel, this ignited the idea of creating a highly efficient engine that could work on
9991-488: Was attacked and criticised over several years. Critics claimed that Diesel never invented a new motor and that the invention of the diesel engine is fraud. Otto Köhler and Emil Capitaine [ de ] were two of the most prominent critics of Diesel's time. Köhler had published an essay in 1887, in which he describes an engine similar to the engine Diesel describes in his 1893 essay. Köhler figured that such an engine could not perform any work. Emil Capitaine had built
10094-477: Was built in Augsburg . On 10 August 1893, the first ignition took place, the fuel used was petrol. In winter 1893/1894, Diesel redesigned the existing engine, and by 18 January 1894, his mechanics had converted it into the second prototype. During January that year, an air-blast injection system was added to the engine's cylinder head and tested. Friedrich Sass argues that, it can be presumed that Diesel copied
10197-645: Was only produced in 1996–1997. The E 50 was not available on the US market. Production figures: ~2,870 (production models). Engine (Same engine used in the S500/C, SL500, with tuned exhaust and cylinder head) Transmission Performance The 1998 and 1999 E 55 are identical to the E 50 (pre-facelift). The W210 E 55 was produced for 5 years 1998 through 2002 with a facelift in 2000. Production figures. ~12,000 accounted for (production models). 3000 per year. 500 per year imported into North America. Engine Transmission Performance The 2001 model year E 55
10300-586: Was sold as the limited edition Masterpiece in 1995. Following the impending release of its successor, the Mercedes-Benz W210 , the remaining units of W124 were fitted with additional accessories found in stock models such as walnut wood steering wheel (optional), airbag for front passenger, walnut center console glove box, electric rear blind and rear seat side window sunshade (optional). There were also 4 unique pieces of accessories fitted to Masterpieces which were not available to any other W124 around
10403-541: Was succeeded by the W 210 E-Class (saloons, estates, rolling chassis) after 1995, and the C 208 CLK-Class (coupés, and cabriolets) in 1997. In North America, the W124 was launched in early November 1985 as a 1986 model and marketed through the 1995 model year. Series production began at the beginning of November 1984, with press presentation on Monday, 26 November 1984 in Seville , Spain, and customer deliveries and European market launch starting in January 1985. The W124
10506-445: Was the first E-Class available with factory armoring, these cars were known as GUARD versions and were available with 2 different levels of armored protection, B4 or B6 . Diesel engine The diesel engine , named after the German engineer Rudolf Diesel , is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression ; thus,
10609-424: Was the main test of Diesel's engine. The engine was rated 13.1 kW with a specific fuel consumption of 324 g·kW ·h , resulting in an effective efficiency of 26.2%. By 1898, Diesel had become a millionaire. The characteristics of a diesel engine are The diesel internal combustion engine differs from the gasoline powered Otto cycle by using highly compressed hot air to ignite the fuel rather than using
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