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Mercedes-Benz OM605 engine

FieldValue
nameMercedes-Benz OM605
imageMB OM 605 D 25.jpg
manufacturerMercedes-Benz
production–
emissions controlCatalytic converter
predecessorMercedes-Benz OM602 engine
successorMercedes-Benz OM612 engine
configurationStraight-5
displacement2497 cc
bore87 mm
stroke84 mm
blockCast iron
headAluminum
valvetrainDOHC / 4 valves x cyl.
timingChain
compression22.0:1
idle650-750 (.911)
redline5200 RPM
turbochargerNo (.91x)
fuelsystemBosch in-line indirect injection M-type
managementRSF Governed (.911)
fueltypeDiesel
oilsystemWet sump
coolingsystemWater-cooled
power83-110 kW
torque170-280 Nm

Exhaust gas recirculation

580-680 (ERE)

Yes, intercooled (.96x)

Bosch EDC (ERE) The Mercedes-Benz OM605 is a 2497 cc inline-five cylinder (R5/I5) double overhead camshaft (DOHC) diesel engine with indirect injection manufactured by Mercedes-Benz between 1993 and 2001. It replaced the single overhead camshaft (SOHC) OM602 engine.

It uses a Bosch electronically controlled inline injection pump (ERE) except in the W124 where it uses a Bosch mechanically governed inline injection pump (Bosch M pump with RSF governor).

It is related to the straight-4 2.0 and 2.2 litre OM604 and the straight-6 3.0 litre OM606 engines.

Design

As per the OM602 the engine has a cast iron block and aluminum cylinder head, the block has 6 main caps, they are held by two bolts per cap. The head is a DOHC design with 4 valves x cylinder and split intake ports. As per the OM602 it has hydraulic bucket type lifters, thus requiring no periodical valve adjustment. A big difference when compared to its turbo predecessors is the intercooler

It has a double row timing chain that drives the injection pump and the camshafts, the sprocket is on the exhaust camshaft and both cams are connected by a gear drive, while the oil pump is driven by a separate single row chain

The main differences between the naturally aspirated and the turbocharged versions are the cylinder head, injection pump, valves, camshafts, rods, intake and exhaust manifolds and some minor differences like oil feed and return holes for the turbo and different crankcase ventilation system, valve cover and plastic engine cover

Specifications

IDDIN-rated max. motive power
at rpmmax. torque
at rpmaspirationyearsapplications
OM 605.910 ERE83 kW @5000 rpm170 Nm @2800 rpmNatural1993–1995W202 C 250 D
OM 605.91183 kW @5000 rpm170 Nm @2800 rpmNatural1993–1996W124 E 250 D
OM 605.912 ERE83 kW @5000 rpm170 Nm @2800 rpmNatural1996–1998W210 E 250 D
OM 605.960 ERE110 kW @4400 rpm280 Nm @1800 rpmTurbocharger, intercooler1995–2001W202 C 250 Turbodiesel
OM 605.962 ERE110 kW @4400 rpm280 Nm @1800 rpmTurbocharger, intercooler1997–1999W210 E 250 Turbodiesel

References

References

  1. McTaggart, Bryan. (June 5, 2020). "6/05: The Mercedes-Benz OM605 Diesel...Yeah, They Can Hustle!".
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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