Mercedes-Benz OM611 engine

Mercedes-Benz OM611 engine

Manufacturer	Mercedes-Benz
Production	1998–2006
Predecessor	Mercedes-Benz OM604 engine
Successor	Mercedes-Benz OM646 engine
Displacement	2,148 cc (2.148 L; 131.1 cu in) 2,151 cc (2.151 L; 131.3 cu in)
Cylinder bore	88.0 mm
Piston stroke	88.3–88.4 mm
Valvetrain	DOHC
Turbocharger	Yes
Fuel system	Common rail direct injection
Fuel type	Diesel
Power output	60–105 kW (82–143 hp)
Torque output	200–315 Nm (148–232 lb·ft)

The Mercedes-Benz OM611 engine is a straight-4 diesel engine produced by Mercedes-Benz.

It replaced in 1998 the naturally aspirated OM604 with indirect injection in the W202 C-Class and the W210 E-Class for the 1999 model year, in 102 PS (75 kW; 101 hp) and 125 PS (92 kW; 123 hp) powertrains.

In 1999, the displacement were reduced from 2,151 cc (2.151 L; 131.3 cu in) to 2,148 cc (2.148 L; 131.1 cu in) for the E-Class, and the engine were now available ind 116 PS (85 kW; 114 hp) and 143 PS (105 kW; 141 hp) powertrains.

It was also introduced with the facelift of the W90x Sprinter in 2000 for the 2001 model year in 82 PS (60 kW; 81 hp), 109 PS (80 kW; 108 hp) and 129 PS (95 kW; 127 hp) powertrains, and in the W203 C-Class in 122 PS (90 kW; 120 hp) and 143 PS (105 kW; 141 hp) powertrains.

The W211 E-Class introduced in 2002 were not equipped with the OM611, but with the new OM646 engine.

Technical specifications

Displacement	Bore	Stroke	Cylinders	Valves	Power	Torque	Applications
2,151 cc (2.151 L; 131.3 cu in)	88.0 mm	88.4 mm	straight-4	16	102 PS (75 kW; 101 hp) @4200 rpm	235 N·m (173 lb·ft) @1500 rpm	1998 W202 C-Class, 1998 W210 E-Class
					125 PS (92 kW; 123 hp) @4200 rpm	300 N·m (220 lb·ft) @1800 rpm	1998 W202 C-Class, 1998 W210 E-Class
2,148 cc (2.148 L; 131.1 cu in)		88.3 mm			82 PS (60 kW; 81 hp) @3800 rpm	200 N·m (150 lb·ft) @1400–2600 rpm	2000 W90x Sprinter
					109 PS (80 kW; 108 hp) @3800 rpm	270 N·m (200 lb·ft) @1400–2400 rpm	2000 W90x Sprinter
					116 PS (85 kW; 114 hp) @4200 rpm	250 N·m (180 lb·ft) @1400–2600 rpm	1999 W210 E-Class, 2000 W203 C-Class
					122 PS (90 kW; 120 hp) @3800 rpm	270 N·m (200 lb·ft) @1600–2400 rpm	2003 W211 E-Class, 2003 W203 C-Class
					129 PS (95 kW; 127 hp) @3800 rpm	300 N·m (220 lb·ft) @1600–2400 rpm	2000 W90x Sprinter
					136 PS (100 kW; 134 hp) @4200 rpm	315 N·m (232 lb·ft) @1800–2600 rpm	1999 W210 E-Class for Belgium
					143 PS (105 kW; 141 hp) @4200 rpm	315 N·m (232 lb·ft) @1800–2600 rpm	1999 W210 E-Class, 2000 W203 C-Class

The OM661.911 engine is a single overhead cam version used in the MB100D Mercedes van manufactured in Korea by Ssanyongg. It uses a double row timing chain to drive the injector pump and cam. and a single short chain to drive an oil pump in the sump. Injector pump timing is set by using a locking pin to hold the injector pump when refitting