Mercedes Engine Om642

The 3.0-liter V6 diesel engine Mercedes OM 642 has been produced by the company since 2005 and is practically installed in all models from the C-Class to the G-Class SUV, as well as in the Vito vans. This diesel engine is also actively used in Chrysler and Jeep models under its own designation EXL.

Mercedes OM642 3.0 CDI engine specifications.

Modification OM 642 DE 30 LA red. or 280 CDI and 300 CDI
TypV-type
Number of cylinders6
number of valves24
Exact capacity2987 cm³
Cylinder diameter83 mm
Piston stroke.92 mm
Power systemCommon Rail
Power184 - 204 HP
Torque400 - 500 nm
Compression ratio18.0
Fuel typediesel
Environmental class4/5/6
Modification OM 642 DE 30 LA or 320 CDI and 350 CDI
TypV-type
Number of cylinders6
number of valves24
Exact capacity2987 cm³
Cylinder diameter83 mm
Piston stroke.92 mm
Power systemCommon Rail
Power211 - 235 HP
Torque440 - 540 nm
Compression ratio18.0
Fuel typediesel
Environmental class4/5
Modification OM 642 LS DE 30 LA or 350 CDI
TypV-type
Number of cylinders6
number of valves24
Exact capacity2987 cm³
Cylinder diameter83 mm
Piston stroke.92 mm
Power systemCommon Rail
Power231 - 265 HP
Torque540 - 620 nm
Compression ratio18.0
Fuel typediesel
Environmental class5/6

Fuel consumption Mercedes Engine Om642

Using the example of the 2010 Mercedes ML 320 CDI with automatic transmission:
City12.7 litry
Route7.5 litry
Mixed9.4 litry

Engine Overview and Common Failures

The weight of the OM642 engine assembly is 220 kg. The engine number is located at the front, at the junction of the block and the head. There are leaks in the heat exchanger. The most well-known problem with this diesel engine is the leaks in the heat exchanger gaskets, and since it is located in the block assembly, replacing the inexpensive gaskets can be costly. In approximately 2010, the design was improved and similar leaks are no longer encountered. The power unit is equipped with a reliable Common Rail fuel system from Bosch, but its piezo injectors are very demanding in terms of fuel quality and are also expensive. It is also worth noting the regular failures of the fuel quantity control valve in the fuel pump. In the intake manifold of this power unit, there are steel swirl flaps, but they are controlled by servo drives with plastic rods, which often break. The problem is exacerbated by contamination in the intake due to the weak VKG membrane. The turbocharger itself, produced by Garrett, is very durable and runs smoothly up to 300,000 km, except that the system for changing its geometry often gets stuck due to severe contamination. Most often, the turbine is damaged by debris from the destruction of the welded joints of the exhaust manifold. Other problems with this engine include frequent oil leaks and a not very durable oil pump, and since it is sensitive to oil pressure, bearing wear is not uncommon.

Engine Mercedes Om642

Mercedes
C-Class W2032005 - 2007
C-Class W2042007 - 2014
CLS-Class W2192005 - 2010
CLS-Class W2182010 - 2018
CLK-Class C2092005 - 2010
E-Class C2072009 - 2017
E-Class W2112007 - 2009
E-Class W2122009 - 2016
E-Class W2132016 - 2018
R-Class W2512006 - 2017
ML-Class W1642007 - 2011
ML-Class W1662011 - 2015
GLE-Class W1662015 - 2018
G-Class W4632006 - 2018
GLK-Class X2042008 - 2015
GLC-Class X2532015 - 2018
GL-Class X1642006 - 2012
GLS-Class X1662012 - 2019
S-Class W2212006 - 2013
S-Class W2222013 - 2017
Sprinter W9062006 - 2018
Sprinter W9072018 - CE
X-Class X4702018 - 2020
V-Class W6392006 - 2014
Chrysler (jak EXL)
300C 1 (LX)2005 - 2010
Jeep (jak EXL)
Commander 1 (XK)2006 - 2010
Grand Cherokee 3 (WK)2005 - 2010

Engines from the same line as Mercedes Engine Om642

See Also

Mercedes OM646 engine

The 2.2-liter diesel engine Mercedes OM 646 was produced from 2002 to 2010 and installed in the C-Class, CLK-Class, E-Class models, as well as in Vito and Sprinter minibuses. There was a version of this engine with a transverse arrangement, the OM 644, for the Chrysler PT Cruiser. The R4 engine lineup includes: OM616 OM601 OM604 OM611 OM640 OM651 OM654 OM668

Mercedes OM617 engine

The 3.0-liter, inline, five-cylinder Mercedes OM 617 engine was produced from 1974 to 1990 and installed in popular models such as the W123, W126, and the off-road vehicle Geländewagen. This diesel engine was continuously modernized, so there are several versions of it. The R5 engine lineup also includes the following diesel units: OM602, OM605, OM612, and OM647.

Mercedes Engine Om 647

The 2.7-liter 5-cylinder inline engine Mercedes OM647 was produced from 2002 to 2005 and installed in the E-Class model with the W211 body, only in the pre-facelift version. This diesel engine is rarely found in our country and represents a true exclusivity. The R5 engine line also includes the following diesel engines: OM617, OM602, OM605, and OM612.

Mercedes Engine Om642

The 3.0-liter V6 diesel engine Mercedes OM 642 has been produced by the company since 2005 and is practically installed in all models from the C-Class to the G-Class SUV, as well as in the Vito vans. This diesel engine is also actively used in Chrysler and Jeep models under its own designation EXL.

Fiat 182b6000 engine

The 1.6-liter engine 182B6000 or Fiat Stilo 1.6 16v was produced by the company from 2000 to 2012 and was installed in popular models such as Doblo, Marea, Multipla, Palio, Strada or Lancia Lybra. This power unit is actually a modernized version of the engine with the index 182A4000. The Torque series also includes the engine: 182A4000.

Subaru Ej202 Engine

The 2.0-liter Subaru EJ202 gasoline engine was produced in Japan from 1998 to 2009 and installed in several well-known models of the company, such as the Legacy and Forester crossover. This engine underwent significant modernization in 2003 and received a lightweight cylinder block. The EJ20 engine lineup also includes the following engines: EJ20E, EJ201, EJ203, and EJ204.