Mercedes-Benz OM648 engine

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Mercedes-Benz OM648
OM646.JPG
Overview
Manufacturer Mercedes-Benz
Production2002-2006
Layout
Configuration Inline 6
Displacement 3.2 L (3,222 cc)
Cylinder bore 88 mm (3.46 in)
Piston stroke 88.3 mm (3.48 in) [1]
Cylinder block material Cast iron
Cylinder head material Aluminum
Valvetrain DOHC 4 valves x cyl.
Combustion
Turbocharger Single variable nozzle
Fuel system common rail fuel injection
Fuel type Diesel
Oil system Wet sump
Cooling system Water cooled
Output
Power output 204 PS (150 kW; 201 hp)
Specific power 63.3 PS (46.6 kW; 62.4 hp) per litre
Torque output 500 N⋅m (369 lb⋅ft)
Chronology
Predecessor OM613
Successor OM642

The Mercedes-Benz OM648 engine is a 3.2 Litre, straight-6 4 valves per cylinder, cast iron block diesel engine manufactured by the Mercedes-Benz division of Daimler AG as a replacement for the previous Mercedes-Benz inline-5 and -6 engines.

The engine features common rail fuel injection and a variable nozzle turbocharger. The injection system operates at 1,600 bar (23,000 psi).

Power output is 204 PS (150 kW; 201 hp) at 4200 rpm and 500 N⋅m (369 lb⋅ft) of torque from 1,800 to 2,600 rpm.

Mercedes claims this engine will propel the E320 CDI to 60 mph (97 km/h) in 6.6 seconds. All while managing 27 mpgUS (8.7 L/100 km; 32 mpgimp)+ city and 37 mpgUS (6.4 L/100 km; 44 mpgimp)+ Highway[ citation needed ]

Oil specification MB 229.31 or MB 228.31 is recommended and has a service interval of 13,000 miles (21,000 km) using the specified oil.[ citation needed ]

OM648 is the successor to the OM613.

Technical specifications

DisplacementBore x StrokePowerTorqueApplications
3.2 L; 196.6 cu in (3,222 cc)88 mm × 88.3 mm (3.46 in × 3.48 in)204 PS (150 kW; 201 hp) at 4200 rpm500 N⋅m (370 lb⋅ft) at 1800 rpm2002-2006 (?) E320 CDI and 2002-2005 S320 CDI

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References

  1. "Mercedes-Benz introducing new diesel family in E 220 d this spring; new OM 654 with 13% lower fuel consumption; diesel "indispensable"". greencarcongress.com. greencarcongress.com. 15 February 2016. Archived from the original on 2016-02-16. Retrieved 2016-04-20.