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 headquarte ...

M271 engine is a

straight-4 A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...

automobile A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded ...

piston engine A reciprocating engine, also often known as a piston engine, is typically a heat engine that uses one or more reciprocating pistons to convert high temperature and high pressure into a rotating motion. This article describes the common feat ...

family used in the 2000s (decade). All M271 engines are 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 betwee ...

. The family has a cast aluminium engine block and aluminium

DOHC 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

4 valves per cylinder In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, ...

and

variable valve timing In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with var ...

and a

coil-on-plug ignition A distributor is an enclosed rotating switch used in spark-ignition internal combustion engines that have mechanically timed ignition. The distributor's main function is to route high voltage current from the ignition coil to the spark plug ...

system.

KE18ML (271.95X)

The KE18ML is a version. Bore and stroke is . Output ranges from at 5200 rpm to at 5800 rpm. It uses sequential fuel injection, is

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 indu ...

and

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 ...

, and features 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 crank ...

s. A version running on natural gas was introduced in the German market in 2002. Applications: * 2002 Mercedes-Benz CLK-Class (W209) CLK 200 KOMPRESSOR * 2002

Mercedes-Benz C-Class (W203) The Mercedes-Benz C-Class (W203) is the internal designation for a range of compact executive cars manufactured and marketed by DaimlerChrysler from 2000 to early 2007, as the second generation of the C-Class — in sedan/saloon, three-door l ...

C 180 KOMPRESSOR, C 200 KOMPRESSOR, C 230 KOMPRESSOR * 2002 Mercedes-Benz C-Class Sportcoupé CLC 180 KOMPRESSOR, CLC 200 KOMPRESSOR, * 2002

Mercedes-Benz E-Class (W211) The Mercedes-Benz W211 is the third generation Mercedes-Benz E-Class made from 2002 to 2009 in sedan/saloon and station wagon/estate configurations – replacing the W210 E-Class models and superseded by the Mercedes-Benz W212 in 2009. The C219 ...

E 200 KOMPRESSOR * 2004

E 200 NGT (bi-fuel - gasoline + natural gas) * 2004 Mercedes-Benz SLK-Class (R171) SLK 200 KOMPRESSOR * 2005 Mercedes-Benz C-Class KOMPRESSOR gasoline * 2007

Mercedes-Benz C-Class (W204) The Mercedes-Benz C-Class (W204) is the third generation of the Mercedes-Benz C-Class. It was manufactured and marketed by Mercedes-Benz in sedan/saloon (2007–2014), station wagon/estate (2008–2014) and coupé (2011–2015) bodystyles, with ...

C 180 KOMPRESSOR, C 200 KOMPRESSOR * 2008

Mercedes-Benz CLC-Class The Mercedes-Benz C-Class (W203) is the internal designation for a range of compact executive cars manufactured and marketed by DaimlerChrysler from 2000 to early 2007, as the second generation of the C-Class — in sedan/saloon, three-door l ...

CLC 180 KOMPRESSOR, CLC 200 KOMPRESSOR

DE18ML (271.942)

This engine had the same dimensions as E18ML and almost the same features, but used CGI (Stratified Charged Gasoline Injection)

gasoline direct injection Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct fro ...

. It has been produced since 2003 in only one version, with an output of at 5300 rpm. The production ceased in 2005. Applications: * 2003 Mercedes-Benz C-Class Sportcoupé C 200 CGI * 2003

C 200 CGI * 2003 Mercedes-Benz CLK-Class (W209) CLK 200 CGI

KE16ML (271.910)

The KE16 is a version introduced in 2008. Bore and stroke is . It shares the same features with the KE18ML version, like supercharger and

multi-point 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 ...

. Output ranges from at 5000 rpm to at 5200 rpm. Applications: * 2008

CLC 160 * 2008

C 180 KOMPRESSOR

DE18LA (M271Evo, 271.8XX)

This is the last version of M271 engine family. Dimensions are the same as E18ML and DE18ML, but the supercharger has been replaced with a turbocharger; like the DE18ML it uses the CGI (Stratified Charged Gasoline Injection)

. Output ranges from at 5200 rpm to at 5500 rpm. Applications: * 2009-2013

C 180 CGI, C 200 CGI, C 250 CGI * 2009-2013

Mercedes-Benz E-Class (W212) The W212 and S212 Mercedes-Benz E-Class series is the fourth-generation of the E-Class range of executive cars which was produced by Mercedes-Benz between 2009 and 2016 as the successor to the W211 E-Class. The body styles of the range are: * ...

E 200 CGI, E 250 CGI * 2010-2013

Mercedes-Benz E-Class (C207) The C207/A207 Mercedes-Benz E-Class are coupé and convertible models based on the W204 C-Class sedan chassis. It was produced between 2009 and 2017 as the successor to the previous Mercedes-Benz CLK-Class (C209), C209/A209 CLK-Class. The body sty ...

E200 CGI * 2009-2013

E250 CGI *2011-2015

Mercedes-Benz SLK-Class (R172) The third generation of Mercedes-Benz SLK-Class (SLC-Class) (series R172) was launched in Stuttgart in January 2011, with a subsequent public launch at the 2011 Geneva Motor Show, with international sales starting spring 2011. It is the success ...

SLK 200, SLK 250

Other uses

The engine in 2.0-litre

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'' ...

form is used by German automotive company

HWA Team HWA Team, also known as HWA RACELAB, is the auto racing team of HWA AG, a German company based in Affalterbach, that also develops and builds vehicles and components for Mercedes-AMG race cars. It is named after founder Hans-Werner Aufrecht. ...

as the basis for a Mercedes-Benz motor racing engine and has been the engine used widely in

Formula 3 Formula Three, also called Formula 3, abbreviated as F3, is a third-tier class of open-wheel formula racing. The various championships held in Europe, Australia, South America and Asia form an important step for many prospective Formula One driv ...

motor racing powering championship winning drivers across Europe and further afield.

References