| Mercedes-Benz M111 engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1992–2003 |
| Layout | |
| Configuration | Straight-4 |
| Displacement | 1.8 L (1,799 cc) 2.0 L (1,998 cc) 2.2 L (2,199 cc) 2.3 L (2,295 cc) |
| Cylinder bore | 85.3 mm (3.36 in) 89.9 mm (3.54 in) 90.9 mm (3.58 in) |
| Piston stroke | 78.7 mm (3.10 in) 86.6 mm (3.41 in) 88.4 mm (3.48 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminum alloy |
| Valvetrain | DOHC 4 valves x cyl. |
| Compression ratio | 9.6:1, 10.0:1, 10.4:1, 10.6:1 |
| Combustion | |
| Supercharger | In some versions |
| Fuel system | Fuel injection |
| Management | Siemens PEC/PMS (Pressure Engine Control) (1994-1996 W202 C180 C200, W124 E200)
|
| Fuel type | Gasoline |
| Cooling system | Water cooled |
| Output | |
| Power output | 90–145 kW (122–197 PS; 121–194 hp) |
| Torque output | 170–280 N⋅m (125–207 lb⋅ft) |
| Chronology | |
| Predecessor | Mercedes-Benz M102 engine |
| Successor | Mercedes-Benz M271 engine |
The M111 engine family is 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. All engines in the family use a cast iron engine block and aluminum alloy cylinder head.