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The M111 engine family 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 engine from
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 ...
, produced from 1992 to 2003. Debuted in the 1992
Mercedes-Benz E-Class The Mercedes-Benz E-Class is a range of executive cars manufactured by German automaker Mercedes-Benz in various engine and body configurations. Produced since 1953, the E-Class falls midrange in the Mercedes line-up, and has been marketed worldwi ...
(
W124 The Mercedes-Benz W124 is a range of mid-size cars made by Daimler-Benz from 1984 to 1997. The range included numerous body configurations, and though collectively referred to as the W-124, official internal chassis designations varied by body st ...
), this engine family is relatively
oversquare In a reciprocating piston engine, the stroke ratio, defined by either bore/stroke ratio or stroke/bore ratio, is a term to describe the ratio between cylinder bore diameter and piston stroke length. This can be used for either an internal comb ...
and uses 4 valves per cylinder. All engines in the family use a cast iron engine block and aluminum alloy cylinder head.


M111.920 and M111.921

The M111.920 is a 16 valve engine with bore and stroke of 85.3 mm × 78.7 mm. It produces of power at 5500 rpm and at 4200 rpm. Starting with 1996 it has a variant called the M111.921 which has a MAF (Mass Air Flow)-sensor instead of MAP-sensor on the first one, and using ECU instead of PMS. Applications: * 1993-2000 C180 (
W202 Mercedes-Benz W202 is the internal designation for a compact sedan/saloon manufactured and marketed by Mercedes-Benz 1993–2000, as the first generation of the C-Class, now in its fifth generation. Replacing the 190 series/W201 in June 1993, ...
)


M111.940

The M111.940 is a 16-valve engine with bore and stroke of and compression ratio of 9.6:1. It produces of power and of torque. Applications: * 1992-1995 E200 (W124) * 1997-2002 CLK200 (C208) * 1993-2000 C200 (W202) Unlike the 102, 103, and early 104 series engines, the engine did not use
mechanical 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 ...
but the
Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...
PEC/PMS (Pressure Engine Control) management system, which integrates fuel and spark management. It is a speed-density type of system, as mixture formation is dependent on RPM, TPS angle, and manifold pressure (MAP). Injectors work in pairs (idle, part load), or altogether (full-load). It uses 2 ignition coils and no ignition distributor. Cylinders are fired in pairs (dual fire) - 1 and 4 together, and 2 and 3 together. The crankshaft position sensor is sensing the movement of two radially opposed position plates on the flywheel, one of which is magnetized, and the other is not. Thus, the engine management has precise information which group of cylinders to fire, and which group of injectors to spray.


M111.942

Similar to the M111.940 engine, used in the following years. It produces of power and of torque. Applications: * 1995-2000 E200 (W210) * 1993-2000 C200 (W202) This motor never had PMS. Early models -95 to -97 has a HFM-motronic, hot-film type air/fuel metering device, and -97 to -2002 with ME2.1 motronic. The later system also has a magnet on the intake camshaft, and gives signal to ECU, to assist the motor in producing more torque at low revs. The early motor didn't have any camshaft position sensor, so wiring was much different. The only problem experienced with this M111 excellent reliability motor is the originally installed
Victor Reinz Dana Incorporated is an American supplier of axles, driveshafts, transmissions, and electrodynamic, thermal, sealing, and digital equipment for conventional, hybrid, and electric-powered vehicles. The company's products and services are aimed a ...
headgasket, which eventually tore apart by age, and made the top lose coolant on the side. Other than that, only some year models, had bad insulation on the engine wiring, that needed all the wiring to be replaced.


M111.943

It produces and . Applications: * 1996-2000 SLK200 Kompressor (R170)


M111.944

The M111.944 is a 16-valve engine utilizing a
supercharger 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 ...
similar to the 2.3L M111.973 engine. It produces of power and of torque. This engine was built especially for SLK 170 and CLK 208 exported to Italy, The Netherlands, Portugal and Greece for tax reasons. The 'executive cars' tax limit was based in engine's capacity bigger than 2000 cc, so Mercedes in order to hit these markets made a mixture of the M111.940 with the supercharger of M111.973 for high performance at low engine capacity. Applications: * 1996-1999 C200 Kompressor (W202)


M111.946

It produces and . Applications: * 1996-2000 SLK200 (R170)


M111.947

It produces and . Applications: * 1997-2002 E200 Kompressor (W210)


M111.951 / M111.952

EVO engine (M 111 E 20 EVO).
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'' ...
, compression ratio is 10.6:1. The power is at 5300 rpm, torque - at 4000 rpm. Improvement includes reinforced cylinder block, new cylinder head, individual coil-on-plug ignition with new iridium-tipped spark plugs for 100,000km/60,000 mile replacement intervals, connecting rods and pistons for higher compression ratio, fuel injection now Siemens SIM4, EuroIV emissions compliant, dual oxygen sensors. Applications: * 2000-2002
Mercedes-Benz C Class The Mercedes-Benz C-Class is a series of compact executive cars produced by Mercedes-Benz Group AG. Introduced in 1993 as a replacement for the 190 (W201) range, the C-Class was the smallest model in the marque's line-up until the W168 A-Class ...
C180 (W203) * 2000-2003 V200/Vito 113 A M111.952 variant of this engine was fitted to the final model year S202 where it replaced the older 1.8l 122hp version for MY 2001. 2295 built from 06.2000 until 1.2001.


M111.955

This is a 2.0L Kompressor engine utilizing a supercharger and produces of power. It has 4 cylinders with 16 valves. Applications: * 2000-2002 Mercedes-Benz C Class (W203) Kompressor * 2001 Mercedes-Benz SportCoupe (CL203) Kompressor * 2001 Mercedes-Benz SLK-200K (R170) Kompressor


M111.957

This is a 2.0L Kompressor engine utilizing a supercharger similar to the 2.3L M111.974 engine, but with a lower power output of and torque of @ 2500 rpm. Applications: * 2000-2002 E200K


M111.958

It produces and . Applications: * 2000-2004 SLK200 Kompressor (R170)


M111.960 / M111.961

The M111.960 is a 16-valve engine with bore and stroke of and compression ratio of 10:1. It produces of power and of torque. Applications: * 1992-1995 E220 *1994 - 1996 C220


M111.970 and M111.974

The M111.970 is a 16-valve engine with bore and stroke of and compression ratio of 10.4:1. It produces or 90 kW (122 PS; 120 hp) of power and or 180 N·m (132 lb·ft) of torque. Applications: * 1995-1997 E230 * 1997-1998
C230 The Mercedes-Benz C-Class is a series of compact executive cars produced by Mercedes-Benz Group AG. Introduced in 1993 as a replacement for the 190 (W201) range, the C-Class was the smallest model in the marque's line-up until the W168 A-Class ...
* 1996-2003 V230/Vito 114 *1996-2004 MB100 2.3 *2005-2013
Ssangyong Actyon The SsangYong Actyon (Korean language, Korean: 쌍용 액티언) is a compact SUV built by the South Korean automobile manufacturer SsangYong Motor Company, SsangYong Motor from 2005 to 2011 for the first generation, and 2012 to 2018 for the seco ...
4 cylinder. *1997-2014
Ssangyong Chairman The SsangYong Chairman is a full-size luxury car that was manufactured by South Korean automaker SsangYong from 1997 to 2017. The original model was renamed Chairman H in 2008, with a new model introduced in the same year and designated Chairm ...
4 cylinder. *1996-2004 Ssangyong Istana / Daewoo Istana 4 cylinder. * 1993-2003
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4 cylinder. * 2005-2014 Ssangyong Kyron 4 cylinder. *1993-2003
Ssangyong Musso The SsangYong Musso (Korean: 쌍용 무쏘) is a mid-sized SUV or pickup truck manufactured by the South Korean automaker SsangYong from 1993. The Musso SUV was a result of collaboration between SsangYong and Daimler-Benz. The car's design wa ...
4 cylinder. *2001-2012
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4 cylinder.


M111.973

It produces and . Applications: * 1996-2000 SLK230 Kompressor (R170)


M111.975

Similar to the 2.3L M111.970 engine, except the usage of a supercharger (kompressor), boosting its power output to . Applications: * 1999 E200 Kompressor * 1997-2002 CLK230 Kompressor (C208) * 1999-2002 C230 Kompressor (W202) * 1998-2004 SLK230 Kompressor Note: For the W210 E200 Kompressor from 1997 to 1999 the power output is . Only the 1999 W210 E200 Kompressor received the .


M111.981

Similar to the 2.3L M111.974 engine, except supercharged. Power . Applications: * 2002 C230 Kompressor


M111.983

It produces and . Applications: * 2000-2004 SLK230 Kompressor (R170)


M111.984

Power {{convert, 105, kW, PS hp, 0, abbr=on. Applications: * 1995-2006 Sprinter 214 / 314 / 414 * 1996-2001
Volkswagen LT The Volkswagen Transporter LT is the largest light commercial panel van produced by Volkswagen (and subsequently Volkswagen Commercial Vehicles as of 1996) from 1975 to 2006, before being replaced by the Crafter. Two generations were produced ...
2.3 * 1996-1998
Ssangyong Musso The SsangYong Musso (Korean: 쌍용 무쏘) is a mid-sized SUV or pickup truck manufactured by the South Korean automaker SsangYong from 1993. The Musso SUV was a result of collaboration between SsangYong and Daimler-Benz. The car's design wa ...
2.3


See also

*
List of Mercedes-Benz engines Mercedes-Benz has produced a range of petrol, diesel, and natural gas engines. This is a list of all internal combustion engine models manufactured. Petrol engines Straight-three * M160, 0.6 – 0.7 L (1998–2007) * M281, 0.9 - 1.0 L (20 ...


References


Mercedes Benz E-Class
- from Mercedes Club.cz (Czech Republic) M111 Straight-four engines Gasoline engines by model