Mercedes-Benz OM660 engine
| Mercedes-Benz OM660 | |
|---|---|
| Overview | |
| Manufacturer |
|
| Production | 1998 – 2015 |
| Layout | |
| Configuration | Straight-three engine |
| Displacement | 0.8 L (799 cc) |
| Cylinder bore | 65.5 mm (2.58 in) |
| Piston stroke | 79 mm (3.11 in) |
| Cylinder block material | Aluminium alloy |
| Cylinder head material | Aluminium alloy |
| Valvetrain | SOHC 2 valves x cyl. |
| Compression ratio | 18.5:1 |
| Combustion | |
| Turbocharger | Single-turbo |
| Fuel system | Direct injection Common rail |
| Fuel type | Diesel |
| Cooling system | Water cooled |
| Output | |
| Power output | 30–40 kW (41–54 PS; 40–54 hp) |
| Torque output | 100–130 N⋅m (74–96 lb⋅ft) |
The Mercedes-Benz OM 660 is a 0.8-litre turbocharged straight-three Diesel engine produced by DaimlerChrysler and later MDC Power for use in Smart vehicles, from 1999 to 2014.
Design
The OM660 features a single-overhead camshaft with two valves per cylinder and an aluminium alloy cylinder block and head. It is turbocharged and features an exhaust gas recirculation system.[1] The OM660 was updated in 2007 receiving increased performance due to a new common rail fuel system with increased boost pressure,[2] and again in 2011 featuring further performance and efficiency improvements.[3]
Models
| Engine | Power | Torque | Years |
|---|---|---|---|
| OM660 | 30 kW (41 PS; 40 hp) @ 4,200 rpm |
100 N⋅m (74 lb⋅ft) @ 1,800–2000 rpm |
1999–2006 |
| 33 kW (45 PS; 44 hp) @ 3,800 rpm |
110 N⋅m (81 lb⋅ft) @ 2,000–2,500 rpm |
2007–2009 | |
| 40 kW (54 PS; 54 hp) @ 3,800 rpm |
130 N⋅m (96 lb⋅ft) @ 2,100 rpm |
2009–2014 |
OM660 (30 kW version)
- 1999–2006 W450 Smart Fortwo
OM660 (33 kW version)
- 2007–2009 W451 Smart Fortwo
OM660 (40 kW version)
- 2009–2014 W451 Smart Fortwo
References
- ^ Thiemann, Wolfgang; Finkbeiner, Hansjörg; Brüggemann, Hans (November 1999). "Der neue Common-Rail-Dieselmotor mit Direkteinspritzung für den Smart: Teil 1: Motorkonstruktion und mechanischer Aufbau". MTZ - Motortechnische Zeitschrift (in German). 60 (11): 722–733. doi:10.1007/BF03226535. ISSN 0024-8525.
- ^ "Smart Fortwo Passion review | Autocar". www.autocar.co.uk. Retrieved 2018-07-06.
- ^ "Smart ForTwo 54bhp". Auto Express. Retrieved 2018-07-06.