Mercedes-Benz OM648 engine

Mercedes-Benz OM648
Mercedes-Benz OM648
Overview
Manufacturer	Mercedes-Benz
Production	2002-2005
Layout
Configuration	Inline 6
Displacement	3.2 liters (3222 cc)
Cylinder bore	88 mm (3.46 in)
Piston stroke	88.3 mm (3.48 in) [1]
Block material	cast iron
Head material	aluminium
Valvetrain	DOHC 4 valves x cyl.
Combustion
Turbocharger	single variable nozzle
Fuel system	common rail fuel injection
Fuel type	Diesel
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 Liter, 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) @ 4200 RPM and 500 N⋅m (369 lb⋅ft) of torque from 1,800-2,600 RPM.

Mercedes claims this engine will propel the E320 CDI to 60 mph (97 km/h) in 6.6 seconds. All while managing 27 mpg_‑US (8.7 L/100 km; 32 mpg_‑imp)+ city and 37 mpg_‑US (6.4 L/100 km; 44 mpg_‑imp)+ Highway

Oil specification MB 229.51 or MB 228.31 is recommended and has a service interval of 13,000 miles (21,000 km) using the specified oil.

OM648 is a successor to OM613.

Technical specifications

Displacement	Bore x Stroke	Power	Torque	Applications
3.2 liters	88 mm × 88.3 mm (3.46 in × 3.48 in)	204 PS (150 kW; 201 hp) @ 4200 rpm	500 N⋅m (370 lb⋅ft) @ 1800 rpm	2002-2006 (?) E320 CDI and 2002-2005 S320 CDI

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References

"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.

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[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.