Mercedes-Benz OM660 engine

Last updated
Mercedes-Benz OM660
Om660.webp
Overview
Manufacturer Mercedes-Benz
Production1998 – 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 materialAluminium 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 OM660 is a 0.8-litre turbocharged straight-three Diesel engine produced by Mercedes-Benz for use in Smart vehicles, from 1999 to 2014.

Contents

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. The OM660 was updated in 2007 receiving increased performance due to a new common rail fuel system with increased boost pressure, [1] and again in 2011 featuring further performance and efficiency improvements. [2]

Models

EnginePowerTorqueYears
OM66030 kW (41 PS; 40 hp)
@ 4,200 rpm
100 N⋅m (74 lb⋅ft)
@ 1,800 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)

OM660 (33 kW version)

OM660 (40 kW version)

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References

  1. "Smart Fortwo Passion review | Autocar". www.autocar.co.uk. Retrieved 2018-07-06.
  2. "Smart ForTwo 54bhp". Auto Express. Retrieved 2018-07-06.