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
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 2148 cm³ |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Power system | Common Rail |
| Power | 88 - 122 HP |
| Torque | 220 - 290 nm |
| Compression ratio | 18.0 |
| Fuel type | diesel |
| Environmental class | EURO 3 |
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 2148 cm³ |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Power system | Common Rail |
| Power | 129 - 150 HP |
| Torque | 305 - 340 nm |
| Compression ratio | 18.0 |
| Fuel type | diesel |
| Environmental class | EURO 3 |
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 2148 cm³ |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Power system | Common Rail |
| Power | 136 HP |
| Torque | 270 - 340 nm |
| Compression ratio | 17.5 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 2148 cm³ |
| Cylinder diameter | 88 mm |
| Piston stroke. | 88.3 mm |
| Power system | Common Rail |
| Power | 170 HP |
| Torque | 400 nm |
| Compression ratio | 17.5 |
| Fuel type | diesel |
| Environmental class | EURO 4 |
| City | 8.8 litry |
| Route | 5.0 litry |
| Mixed | 6.3 litry |
The weight of the OM646 engine according to the catalog is 204 kg. The engine number can be found in two places. Fuel system: The engine is equipped with a reliable Bosch fuel system with electromagnetic injectors, but leaks from the seals of the injection pump or wear of the metering valve are common. Also, like its predecessor, the refractory washers under the injectors often burn out. Swirl flaps: Plastic swirl flaps in the intake manifold cause a lot of trouble here: they quickly break and come off, and air is sucked in through the holes in their axes. Bearing rotation: The most serious problem is bearing rotation at a mileage of 200 - 300 thousand km. Poor maintenance is considered the main cause, so update the lubrication more often. Other problems: Like many others, these diesel engines are often plagued by oil leaks or air suction. Versions with a single turbo are reliable, but bi-turbo modifications can be troublesome.
| C-Class W203 | 2003 - 2007 |
| C-Class W204 | 2007 - 2009 |
| CLC-Class C203 | 2008 - 2010 |
| CLK-Class C209 | 2005 - 2009 |
| E-Class W211 | 2002 - 2009 |
| V-Class W639 | 2003 - 2010 |
| Sprinter W906 | 2006 - 2009 |
| Sprinter Classic | 2013 - CE |
The 2.2-liter inline diesel engine from Mercedes, model OM 611, was produced from 1997 to 2006 and used in both passenger cars, such as W202 or W210, and in Sprinter-type minibusses. There were two versions of the crankshaft, so some versions had different displacement. The R4 engines include: OM615 OM616 OM601 OM604 OM640 OM646 OM651 OM668
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
The 2.0-liter diesel engine Mercedes OM 654 was introduced by the company only in 2016 and is characterized by an aluminum cylinder block with plasma-sprayed Nanoslide iron coating. There is a version of the transverse OM 654q layout as well as an updated modification OM 654M. The R4 series includes: OM616 OM601 OM604 OM611 OM640 OM646 OM651 OM668
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.
The 4.0-liter V6 Ford 99X or 4.0 OHV engine was manufactured in Germany from 1990 to 2000 and was used in the first two generations of the popular SUV Explorer, which was widely available in many markets. A similar engine, but with a different index, was also installed in the Aerostar minivan and Ranger pickup truck. The Cologne V6 engine family also includes the BRF and 99E units.
The 1.6-liter gasoline engine Mazda B6-ME or B6-2E was produced from 1989 to 1994 and installed in various versions of the BG body model 323 and the first generation of the MX-3 model. This engine is also used in the third generation of Ford Laser and the American version of Escort. B-series engines: B1, B3, B3-ME, B5, B5-ME, B5-DE, B6, B6-DE, BP, BP-ME.