Mercedes-Benz M111 engine
Encyclopedia
The M111 engine family was a straight-4
automobile engine from Mercedes-Benz
, produced from 1992 to 2003. Debuted in the 1992 Mercedes-Benz E-Class
(W124
), this engine family is relatively oversquare
and uses 4 valves per cylinder.
Applications:
Applications:
Unlike the 102, 103, and early 104 series engines, the engine did not use mechanical injection but the Siemens 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.
Applications:
Applications:
Applications:
Applications:
Applications:
, boosting its power output to 170kW (214hp).
Applications:
[NOTE: the M111.947 has been also supercharged to 137 KW on Mercedes-Benz W210|E200 Kompressor]
Applications:
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....
automobile engine from Mercedes-Benz
Mercedes-Benz
Mercedes-Benz is a German manufacturer of automobiles, buses, coaches, and trucks. Mercedes-Benz is a division of its parent company, Daimler AG...
, produced from 1992 to 2003. Debuted in the 1992 Mercedes-Benz E-Class
Mercedes-Benz E-Class
The Mercedes-Benz E-Class is a range of executive-size cars manufactured by Mercedes-Benz in various engine and body configurations. The E initially stood for Einspritzmotor, ; a new feature in volume production vehicles at the time that the E-Class first appeared, with the E as a suffix to the...
(W124
Mercedes-Benz W124
W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...
), this engine family is relatively oversquare
Stroke ratio
In a reciprocating piston engine, the stroke ratio, defined by either bore/stroke ratio or stroke/bore ratio, is a term which is used to describe the ratio between the diameter of the cylinder bore and the length of the piston stroke within its cylinders...
and uses 4 valves per cylinder.
M111.920
The M111.920 is a 1.8 L (1799 cc) 16 valve engine. Depending on the year of manufacture it produces 90kW (122hp) or 95kW (129hp) of power (the latter variant is called the M111.921).Applications:
- 1993-2000 C180 (W202)
M111.940
The M111.940 is a 2.0 L (1998 cc) 16-valve engine with bore and stroke of 89.9 x 78.7 mm and compression ratio of 9.6:1. It produces 100kW (136hp) of power and 190 N-m of torque.Applications:
- 1992-1995 E200Mercedes-Benz W124W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...
Unlike the 102, 103, and early 104 series engines, the engine did not use mechanical injection but the Siemens 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 years following. It produces 100kW (134hp, 136PS) of power and 190 N·m (140 lb·ft) of torque.Applications:
- 1995-2000 E200Mercedes-Benz W210The Mercedes-Benz W210 is a mid-size luxury car–executive car which was produced by the German automaker Mercedes-Benz from 1995 through 2002 . The W210 replaced the W124 model. They were sold under the E-Class model names in both sedan and station wagon body types...
M111.943
The M111.943 is a 2.0 L (1998 cc) 16-valve engine utilizing a supercharger similar to the 2.3L M111.973 engine. It produces 141kW (192hp) of power and 270 N-m of torque. This engine was built especially for SLK's exported to Italy, 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:
- 1998-2000 SLK 200 KompressorMercedes-Benz R170The Mercedes-Benz R170 was an automobile platform for sports cars produced since 1996 and was the first Mercedes-Benz hard top convertible.R170 models were originally sold as the SLK-Class and was based on the W202 C-Class. It was replaced by a new SLK-Class platform - the R171 - for 2005...
(exported only to Italy, Portugal and Greece)
M111.957
This is a 2.0L Kompressor engine utilizing a supercharger similar to the 2.3L M111.947 engine, but with a lower power output of 120kW (161hp, 163PS) and torque of 230 N-m (170 lb·ft) @ 2500 rpm.Applications:
- 1998 E200KMercedes-Benz W210The Mercedes-Benz W210 is a mid-size luxury car–executive car which was produced by the German automaker Mercedes-Benz from 1995 through 2002 . The W210 replaced the W124 model. They were sold under the E-Class model names in both sedan and station wagon body types...
- 2000-2002 E200KMercedes-Benz W210The Mercedes-Benz W210 is a mid-size luxury car–executive car which was produced by the German automaker Mercedes-Benz from 1995 through 2002 . The W210 replaced the W124 model. They were sold under the E-Class model names in both sedan and station wagon body types...
M111.960
The M111.960 is a 2.2 L (2199 cc) 16-valve engine with bore and stroke of 89.9 x 86.6 mm and compression ratio of 10:1. It produces 110kW (150hp) of power and 210 N-m of torque.Applications:
- 1992-1995 E220Mercedes-Benz W124W124 is the Mercedes-Benz internal chassis-designation for the 1985 to 1995 version of the Mercedes-Benz E-Class. The W124 models replaced the W123 models after 1985 and were superseded by the W210 E-Class after 1995.-History:...
M111.970
The M111.970 is a 2.3 L (2295 cc) 16-valve engine with bore and stroke of 90.9 x 88.4 mm and compression ratio of 10.4:1. It produces 110kW (150hp) of power and 220 N-m of torque.Applications:
- 1995-1997 E230Mercedes-Benz W210The Mercedes-Benz W210 is a mid-size luxury car–executive car which was produced by the German automaker Mercedes-Benz from 1995 through 2002 . The W210 replaced the W124 model. They were sold under the E-Class model names in both sedan and station wagon body types...
- 1997 [Mercedes-Benz W202|C230 4cly 2.3 non compresor model "GrayMarket"]
- 1993- Ssangyong MussoSsangYong MussoThe SsangYong Musso is a SUV manufactured by the South Korean automobile manufacturer SsangYong Motor Company, from 1993 to 2005. "Musso" means Rhinoceros in Korean....
4 cylinder.
M111.947
Similar to the 2.3L M111.970 engine, except the usage of a superchargerSupercharger
A supercharger is an air compressor used for forced induction of an internal combustion engine.The greater mass flow-rate provides more oxygen to support combustion than would be available in a naturally aspirated engine, which allows more fuel to be burned and more work to be done per cycle,...
, boosting its power output to 170kW (214hp).
Applications:
- 1997-2002 CLK230 KompressorMercedes-Benz W208The Mercedes-Benz C208/A208 cars were produced from 1998 through 2003. They were sold under the CLK-Class model names. The C208 was a new model based on the W202 C-Class...
- 1999-2000 C230 Kompressor
- 1998-2004 SLK230 KompressorMercedes-Benz R170The Mercedes-Benz R170 was an automobile platform for sports cars produced since 1996 and was the first Mercedes-Benz hard top convertible.R170 models were originally sold as the SLK-Class and was based on the W202 C-Class. It was replaced by a new SLK-Class platform - the R171 - for 2005...
[NOTE: the M111.947 has been also supercharged to 137 KW on Mercedes-Benz W210|E200 Kompressor]
M111.973
Similar to the 2.3L M111.947 engine.Applications:
- 1998-2000 SLK230 KompressorMercedes-Benz R170The Mercedes-Benz R170 was an automobile platform for sports cars produced since 1996 and was the first Mercedes-Benz hard top convertible.R170 models were originally sold as the SLK-Class and was based on the W202 C-Class. It was replaced by a new SLK-Class platform - the R171 - for 2005...