Mercedes-Benz OM612 engine
The Mercedes-Benz OM612 engine is a straight-5 diesel engine produced by Mercedes-Benz.
| Mercedes-Benz OM612 Engine | |
|---|---|
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 1999–2006 |
| Layout | |
| Configuration | Straight-5 |
| Displacement | 2.7 L; 163.8 cu in (2,685 cc) 3.0 L; 180.0 cu in (2,950 cc) |
| Cylinder bore | 88 mm (3.46 in) |
| Piston stroke | 88.3–97 mm (3.48–3.82 in) |
| Valvetrain | DOHC 20 valves |
| Combustion | |
| Turbocharger | Yes |
| Fuel system | Common rail direct injection |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 115–170 kW (156–231 PS; 154–228 hp) |
| Torque output | 330–540 N⋅m (243–398 lb⋅ft) |
| Chronology | |
| Predecessor | Mercedes-Benz OM605 engine |
| Successor | Mercedes-Benz OM647 Engine |
It was introduced in 1999 for the 2000 model year in a 170 PS (125 kW; 168 hp) version in the W210 E-Class, W163 ML-Class, W203 C-Class and W209 CLK-Class in 2000. Also used in the Austrian built Jeep WJ Grand Cherokee (ENF in Jeep catalogs), equivalent to the petrol WJ.
A detuned version with 156 PS (115 kW; 154 hp) was used in the W90x Sprinter from 2000 to 2006, and in some versions of the military G-Wagen.
The OM612 DE 30 LA is a 2950 cc version with 231 PS (170 kW; 228 hp), developed by Mercedes-AMG, was used in the C 30 CDI AMG versions of the W203 C-Class. This remains the only diesel-powered AMG vehicle to date.
The OM612 was a 5-cylinder version of the OM611. A six-cylinder OM613 was also produced.
Technical specifications
| Power | Torque | Applications |
|---|---|---|
| 156 PS (115 kW; 154 hp) @ 3800 rpm | 330 N⋅m (243 lb⋅ft) @ 1400–2400 rpm | 2000 W90x Sprinter and W463 G 270 CDI |
| 163 PS (120 kW; 161 hp) @ 4200 rpm | 370 N⋅m (273 lb⋅ft) @ 1600–2800 rpm | 1999 W210 E-Class and 2000 W203 C-Class for Belgium |
| 170 PS (125 kW; 168 hp) @ 4200 rpm | 370 N⋅m (273 lb⋅ft) @ 1600–2800 rpm | 1999 W210 E-Class and 2000 W203 C-Class for others than Belgium |
| 231 PS (170 kW; 228 hp) @ 3800 rpm | 540 N⋅m (398 lb⋅ft) @ 2000 rpm | 2002-2004 Mercedes-Benz C30 CDI AMG |