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Sprinter 906
Engine 2.1: 4-Cylinder BlueTech Turbo Diesel
Details & Technology
Four-cylinder OM 651 diesel engine with fourth-generation common rail technology
generates a rail pressure of 1800 bar [26,100 PSI] in the high-pressure reservoir. The
maximum ignition pressure in the cylinders is 200 bar [2,900 PSI]. The two-stage
turbocharger comprises a high-pressure and a low-pressure exhaust gas turbocharger.
The fuel is injected directly into the combustion chamber with the aid of solenoid valves.
The engine comes with a rear-mounted camshaft drive and two-mass flywheel to isolate
the crankshaft's vibration stimuli from the drive system. Two balancer shafts with
counterweights ensure that the centers of gravity of the pistons and counterweights move
in parallel to the cylinders' axes, thereby maintaining the common center of gravity in
approximately the same place (Lanchester balancer). In addition, the oil injection nozzles
and the water pump are activated on demand.
TECHNICAL DATA
No. of cylinders/arrangement:
Valves:
Bore/stroke:
Cubic capacity:
Output:
Max torque:
Compression ratio:
Injection system:
Benefits & Arguments
High levels of in-gear acceleration
Compliance with the EPA14/CARB
Low fuel consumption
No turbo lag thanks to two-stage turbocharging
A consistently high level of torque is generated in the rev range from 1400 to 2400 rpm. The
two-stage charging of the turbocharger enables high torque in all engine speed ranges
without "turbo lag". A Lanchester balancer prevents disturbing inertia forces by means of two
balancer shafts with counterweights.
Important: Biodiesel B5 only
4/in-line
4 (2in / 2out)
83.0 mm/ 99 mm
2143 cc
161 HP at 3800 rpm
266 lb.-ft. at 1400-2400 rpm
16.2:1
Common-rail direct injection (CDI)
©2015 Mercedes-Benz USA, LLC / Daimler Vans USA, LLC
MG3
235
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