Mercedes-Benz E220 M111 / Ssangyong 161 engine

161 / M111.940 Mercedez / Ssangyong
The M111.940[3] is a 2.0 L (1,998 cc) 16-valve engine with bore and stroke of 89.9 mm × 78.7 mm (3.54 in × 3.10 in) and compression ratio of 9.6:1. It produces 100 kW (136 PS; 134 hp) of power and 190 N⋅m (140 lb⋅ft) of torque.

Applications:

1992–1997 E 200 (W124)
Unlike the 102, 103, and early 104 series engines, the engine did not use mechanical fuel 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.

M111.941 / M111.942 / M111.945 / M111.946
Similar to the M111.940 engine, used in the following years. It produces 100 kW (136 PS; 134 hp) of power and 190 N⋅m (140 lb⋅ft) of torque.

Applications:

M111.941:

1993–1996 C 200 (W202)
M111.942:

1995–1999 E 200 (W210)
M111.945:

1996–2000 C 200 (W202)
1997–2000 CLK 200 (C208)
1996–2000 E 200 (W210)
M111.946:

1996–2000 SLK 200 (R170)