The

Mercedes-Benz Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...

M113 (and similar M155) engine is a

gasoline Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic co ...

-fueled,

spark-ignition A spark-ignition engine (SI engine) is an internal combustion engine, generally a petrol engine, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug. This is in contrast to compression-ignition engines, t ...

internal-combustion An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combus ...

V8 automobile engine family used in the 2000s. It is based on the similar M112 V6 introduced in 1998, then later phased out in 2007 for the M156 AMG engine and the M273 engine. The standard Mercedes-Benz M113s were built in

Untertürkheim Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the Swab ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

, while the AMG versions were assembled at AMG's

Affalterbach Affalterbach is a municipality in the Ludwigsburg district in Baden-Württemberg, Germany. History Affalterbach became a possession of the County of Württemberg in 1322 and was placed under the jurisdiction of Marbach am Neckar. As it sat on ...

, Germany plant. M113s have aluminum/silicon (Alusil) engine blocks and aluminum

SOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion cha ...

cylinder heads with two spark plugs per cylinder. The cylinder heads have 3 valves per cylinder (two intake, one exhaust). Other features include

Sequential fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All compr ...

, iron coated piston skirts, fracture-split

forged steel Forging is a manufacturing process involving the shaping of metal using localized compressive forces. The blows are delivered with a hammer (often a power hammer) or a die. Forging is often classified according to the temperature at which it ...

connecting rod A connecting rod, also called a 'con rod', is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the cranksh ...

s, a one-piece cast

camshaft A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems ...

, and a magnesium

intake manifold In automotive engineering, an inlet manifold or intake manifold (in American English) is the part of an engine that supplies the fuel/air mixture to the cylinders. The word ''manifold'' comes from the Old English word ''manigfeald'' (from the ...

M113 43

The M113 43 is a version. Bore and stroke is . Power output is at 5,750 rpm with of torque at 3,000 rpm. Output for the variant used in the C43 AMG is uprated to at 5,850 rpm and at 3,250 rpm. Applications: * 1997-2000 C 43 AMG * 1997-2002 E 430 * 1998-2003 CLK 430 * 1999-2001 ML 430 * 1999-2006 S 430

M113 50

The M113 50 is a version with a bore and stroke of . Power output is at 5,600 rpm with of torque at 2,700 to 4,250 rpm. The G 500 and ML 500 both use a deforced version of the 5-liter M113 engine and their output is and respectively.

Active Cylinder Control Daimler AG's Active Cylinder Control (ACC) is a variable displacement technology. It debuted in 2001 on the 5.8 L V12 in the CL600 and S600. Like Chrysler's later Multi-Displacement System, General Motors' Active Fuel Management and Honda' ...

variable displacement Variable displacement is an automobile engine technology that allows the engine displacement to change, usually by deactivating cylinders, for improved fuel economy. The technology is primarily used in large, multi-cylinder engines. Many automobil ...

technology is optional. Applications: * 1998-2008 G 500 * 1999-2006 S 500 * 1999-2006 SL 500 * 2000-2006 CL 500 * 2001-2008 ML 500 * 2002-2006 CLK 500 * 2002-2006 E 500 * 2004-2006 CLS 500 * 2006-2007 R 500 * 2008-2017 SsangYong Chairman W

M113 55

The M113 55 is a version with the same bore as the M113 50/500 but with a longer stroke developed by Mercedes-AMG. These cars were the first to carry the 55 AMG title. Power output is at 5,500 rpm with of torque at 2,800–5,400 rpm. Many popular tuners such as Kleemann USA and AMG itself developed supercharger systems for this model, mirroring the later M113K design. The engine has a power output of at 5,750 rpm and of torque at 3,750 rpm in the SLK55 AMG Black Series. Applications: * 1997-2000 C 55 AMG * 1998-2001 SL 55 AMG * 1998-2002 E 55 AMG * 2000-2002 S 55 AMG * 2000-2003 ML 55 AMG * 2000-2003 CLK 55 AMG * 2002-2006 CLK 55 AMG * 2001-2002 CL 55 AMG * 1999-2003 G 55 AMG * 2004-2010 SLK 55 AMG * 2006-2008 SLK 55 AMG Black Series * 2005-2007 C 55 AMG

M113K - Kompressor

The M113 Kompressor is a

supercharged In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a supercharger is a form of forced induct ...

and twin-

intercooled An intercooler is a heat exchanger used to cool a gas after compression. Often found in turbocharged engines, intercoolers are also used in air compressors, air conditioners, refrigeration and gas turbines. Internal combustion engines Most ...

version of the M113. It is commonly referred to as "M113K" - where 'K' stands for Kompressor (supercharger). Power output varies depending on year and model, from at 6,100 rpm for the E 55 AMG to in the 2004–2006 CLK DTM AMG, with of torque at 2,750–4,000 rpm. Many Mercedes-AMG enthusiasts consider the M113K as the last of the great Kompressor engines used by Mercedes-AMG excluding the Mercedes SLR McLaren. Mercedes-AMG replaced this model with their new 6.2 L

naturally aspirated Naturally may refer to: ;Albums * ''Naturally!'', an album by Nat Adderley * ''Naturally'' (Houston Person album) * ''Naturally'' (J. J. Cale album) * ''Naturally'' (John Pizzarelli album) * ''Naturally'' (Sharon Jones album) * ''Naturally'' ...

V8, making the transition from 55 AMG to the 63 AMG. Although the new 6.2 L M156 AMG motor produced greater peak horsepower, many enthusiasts were disappointed by the lack of torque present in the new naturally aspirated design. The M113K engine has also received praise for its reliability. Applications: * 2003-2006 CL 55 AMG * 2002-2006 S 55 AMG * 2002-2008 SL 55 AMG * 2003-2006 E 55 AMG * 2004-2006 CLK DTM AMG * 2004-2011 G 55 AMG * 2004-2006 CLS 55 AMG *2005 Fisker Tramonto V8 *2005 Laraki Fulgura V8 *

M155

The M155 is a version of the supercharged M113 specifically for the

Mercedes-Benz SLR McLaren The Mercedes-Benz SLR McLaren (C199 / R199 / Z199) is a grand tourer jointly developed by German automotive manufacturer Mercedes-Benz and British automobile manufacturer McLaren Automotive and sold from 2003 to 2009. When the car was develop ...

. Power output is at 6,500 rpm with of torque at 3,250 rpm. An uprated version with at 6,500 rpm and of torque at 4,000 rpm is featured in the 722 edition. Applications: * 2004

* 2006 Mercedes-Benz SLR McLaren 722 Edition

References