Mercedes-Benz M166 engine

Mercedes-Benz M166
Mercedes-Benz M166
Overview
Manufacturer	Mercedes-Benz
Production	1997 – 2005
Layout
Configuration	Inline-four engine
Displacement	1.4 L (1,397 cc); 1.6 L (1,598 cc); 1.9 L (1,898 cc); 2.1 L (2,084 cc);
Cylinder bore	80 mm (3.15 in) (M166 E14, E16); 84 mm (3.31 in) (M166 E19, E21);
Piston stroke	69.5 mm (2.74 in) (1.4 L engines); 79.5 mm (3.13 in) (1.6 L engines); 85.6 mm (3.37 in) (1.9 L engines); 94 mm (3.70 in) (2.1 L engines);
Cylinder block material	Aluminium alloy
Cylinder head material	Aluminium alloy
Valvetrain	SOHC 2 valves x cyl.
Compression ratio	11:1; 10.8:1 (1.9 L engines);
Combustion
Fuel system	Multipoint injection
Fuel type	Gasoline
Cooling system	Water cooled
Output
Power output	60–103 kW (82–140 PS; 80–138 hp)
Torque output	130–205 N⋅m (96–151 lb⋅ft)
Chronology
Successor	Mercedes-Benz M266 engine

The M166 is a range of inline-four engines produced by Mercedes-Benz from 1997 to 2005, before it was succeeded by the M266 engine from 2004.